BIO227

tissues

Groups of cells that are anatomically similar and share a function are called __________. organs organ systems organisms tissues

endocrine

The thyroid and pituitary glands are part of the ________ system.

chromatin

When a cell is NOT dividing, the DNA is loosely spread throughout the nucleus in a threadlike form called __________. chromosomes cytosol chromatin ribosomes

Mixtures are homogeneous while compounds are heterogeneous.

Which of the following is NOT a difference between a compound and a mixture? No chemical bonding occurs between the components of a mixture. The properties of atoms and molecules are not changed when they become part of a mixture. Some mixtures are homogenous, while others are heterogeneous. All compounds are homogeneous. Mixtures are homogeneous while compounds are heterogeneous. Mixtures can be separated by physical means, such as straining, filtering, or evaporation. Compounds can only be separated into their constituent atoms by chemically breaking bonds.

nucleus

Which of the following is NOT a fundamental subatomic unit of an element? electrons neutrons nucleus protons

molecule

Which of the following is NOT a subatomic particle? proton neutron molecule electron

.61

610 ml = ________ liters.

organ

A structure that is composed of two or more tissue types that work together to perform specific functions for the body is a(n) ________. complex cell complex tissue organ organ system

weight

Is a function of, and varies with, gravity.

Neutral subatomic particle.

Neutron

composed primarily of adipose tissue

The hypodermis is ________. composed primarily of adipose tissue part of the dermis the third region of the skin part of the epidermis

energy

The molecule ATP produced in the mitochondrion stores ________.

hyperbolic

Which of the following is NOT one of the three major types of chemical reactions? exchange synthesis hyperbolic decomposition

move substances against (up) a concentration and/or electrical gradient

Active processes ________. move substances against (up) a concentration and/or electrical gradient include osmosis require a hydrostatic pressure gradient move fats and respiratory gases through cell membranes

an amine group and an acid group

All amino acids contain __________. an amine group and a fatty acid phosphorus and nitrogen a nitrogen-containing base and a pentose sugar an amine group and an acid group

an amine group and an acid group

All amino acids, such as the four represented in the figure, contain __________. an amine group and a fatty acid phosphorus and nitrogen a nitrogen-containing base and a pentose sugar an amine group and an acid group

mesenchyme

All connective tissue is derived from an embryonic tissue known as __________. reticular ground substance mesenchyme cartilage

mass

Although a man who weighs 175 pounds on Earth would be lighter on the moon and heavier on Jupiter, his ______ would not be different.

proteins

Amino acids are the monomers from which __________ are made. nucleotides lipids proteins carbohydrates

synthesis

Amino acids joining together to make a peptide is a good example of a(n) ________ reaction. reversible decomposition synthesis exchange

10-fold more

An acid with a pH of 6 has ________ hydrogen ions than pure water. 100-fold fewer 10-fold more 100-fold more 10-fold fewer

14 neutrons

An atom with an atomic number of 10 and a mass number of 24 would have ________. 10 neutrons 24 protons 14 electrons 14 neutrons

increase

As you examine the tissue on your slide, you switch to a greater magnification to increase the size of the cells you see. You ________ the light intensity to see better at the greater magnification. make no adjustment to decrease increase

Smallest particle of an element that retains its properties.

Atom

Number of protons in an atom.

Atomic number

Usually, the first one or two letters of an element's name.

Atomic symbol

ground substance that is firm or hard

Bone and cartilage are connective tissues that have ________. ground substance that is firm or hard all fiber types except collagen large numbers of cells very small amounts of matrix

energy

Calories measure the amount of __________ in food. sugar milliliters fat energy

a disease of the heart

Cardiopathy is __________. a device to regulate heartbeat a surgical opening in the heart a heart tissue cell a disease of the heart

Electrically charged particle due to loss of an electron.

Cation

all vital functions occur outside of cells

Cell theory states all of the following EXCEPT that __________. all organisms are composed of cells all vital functions occur outside of cells cells come from preexisting cells all cells contain hereditary information that is passed from generation to generation

electrons

Charged particles are formed when ________ are gained or lost

sugar

Consider sweetened ice tea. Which of the following is a solute? water ice sugar the beverage itself

are accessory structures of the skin, are derived from stratum basale in the epidermis, and reside in the dermis

Cutaneous glands, hair, and nails ________. are derived from stratum basale in the epidermis are accessory structures of the skin reside in the dermis are accessory structures of the skin, are derived from stratum basale in the epidermis, and reside in the dermis

after mitosis

Cytokinesis occurs when? during interphase during prophase before mitosis after mitosis

interphase

DNA replication occurs during __________. interphase cytokinesis prophase metaphase

shrinking

During overhydration, sodium ions move out of the cell into the extracellular fluid. What is the effect on cell shape? swelling lysis no change shrinking

prophase

During this phase of mitosis, the mitotic spindle forms and the nuclear envelope fragments.

orbitals

Electrons move around the nucleus in paths called _________. rings spheres realms orbitals

ATP

Energy is transported and stored in cells in the substance called ________.

Squamous

Epithelial tissues can be classified according to cell shape. __________ epithelial cells are scalelike and flattened. Columnar Transitional Squamous Cuboidal

have a nucleus

Eukaryotic cells __________. have a nucleus have no cytoplasm have no DNA have no cell membrane

size of the membrane pores

Filtration is a non-selective, passive process in which water and solutes are forced through a membrane by hydrostatic pressure. The following property limits movement of some solutes. hydrophilic or hydrophobic nature of solutes size of the membrane pores tonicity of the solution being filtered temperature of the fluid

one type of epithelial cell, arranged in a single layer

Simple epithelia have ________. two types of epithelial cells, arranged in one layer all three types of epithelial cells arranged in one layer one type of epithelial cell, arranged in a single layer multiple layers of just one type of epithelial cells

ionic

Sodium has one valence electron, while chlorine has seven. What type of chemical bond is most likely to occur between sodium and chlorine? ionic covalent polar covalent hydrogen

ionic

Sodium has one valence electron, while chlorine has seven. What type of chemical bond is most likely to occur between sodium and chlorine? polar covalent hydrogen covalent ionic

solution B

Solution A contains more solute than solution B. Which solution is hypotonic? There is not enough information to know. solution A The solutions are isotonic. solution B

sebaceous

The ducts of __________ glands usually empty into a hair follicle but may also open directly on the skin surface. sebaceous sweat

a hydrostatic pressure gradient

The force that causes water and solutes to cross cell membranes by filtration is ________. a concentration gradient kinetic energy of molecules a hydrostatic pressure gradient energy provided by ATP

hydrostatic pressure

The force that causes water and solutes to cross cell membranes by filtration is ________. a concentration gradient kinetic energy of molecules hydrostatic pressure energy provided by ATP

urinary

The kidneys are part of the __________ system.

thoracic

The major organs of the cardiovascular and respiratory systems, the heart and lungs, reside in the ________ cavity. spinal cranial abdominopelvic thoracic

muscular

The major organs of this system allow you to draw, play tennis, dance, and frown. muscular skeletal cardiovascular nervous

area you see through the lenses of the microscope

The microscope field is the ________. platform on which the slide rests area you see through the lenses of the microscope area in which you place the microscope space near the microscope where you sit

stage

The microscope slide rests on the __________ while being viewed. condenser base stage iris

stratum corneum

The most superficial layer of the epidermis is the __________. stratum spinosum stratum basale stratum granulosum stratum corneum

2, 8, 1

The numbers listed represent the number of electrons in the first, second, and third energy levels, respectively. On this basis, which of the following is an unstable or reactive atom? 2 2, 8, 8 2, 8, 1 2, 8

valence

The outermost subshell of electrons on an atom is termed the __________ shell. third valence innermost nucleus

is based on the concentration of hydrogen ions in a solution

The pH scale __________. ranges from 1 to 7 is based on the salinity of a solution is based on the concentration of hydrogen ions in a solution is linear

metaphase

The phase of mitosis that begins right after prophase is called ________.

nuclei

The plural of nucleus is ________.

organ

The small intestine is an example of a(n) __________, because it is composed of two or more tissue types that perform a particular function for the body. organ system organ muscular tissue epithelial tissue

diffusion

The spontaneous movement of substances from areas of high concentration to areas of lower concentration is called __________. random walk conductivity concentration movement diffusion

left

The starting materials or reactants of a reaction appear on the _________ of the reaction equation. right left center below

digestive

The stomach belongs to this organ system. digestive cardiovascular respiratory reproductive

left upper

The stomach is found primarily in the ________ quadrant of the abdominopelvic cavity. right upper left upper right lower left lower

centriole

The structure that directs movements of chromosomes during cell reproduction is the __________. smooth endoplasmic reticulum lysosome nucleus centriole

neuroglia

The support cells found in nervous tissue are called ________. neuralgia neuroglia neurons neuromuscular

digestive

The system that provides the body with nutrients is the ________ system.

caudal

The term ________ means the opposite of cephalic.

inferior

The term ________ means the opposite of the term superior?

toward or at the body surface

The term superficial refers to a structure that is __________. toward or at the body surface attached near the trunk of the body toward the midline toward the head

multiplying the power of the objective lens by the power of the ocular lens

The total magnification of an object can be found by ________. adding the power of the objective lens and the power of the ocular lens dividing the power of the objective lens by the power of the ocular lens multiplying the power of the objective lens by the number of objective lenses on your microscope multiplying the power of the objective lens by the power of the ocular lens

anterior, inferior

The umbilical region of the human is on the ________ surface, and the umbilical region of the dog is on the ________ surface. posterior, inferior anterior, superior anterior, inferior posterior, superior

keratinocytes

These are the most abundant epidermal cells. tactile cells epidermal dendritic cells melanocytes keratinocytes

sebaceous glands

These glands are found all over the skin except in the palms of the hands and soles of the feet. They produce an oily substance that lubricates skin and hair. endocrine glands sebaceous glands apocrine sweat glands eccrine sweat glands

CO2 and O2

These molecules move through the lipid portion of the plasma membrane by simple diffusion. CO2 and O2 K+ and Ca2+ Na+ and Cl- glucose

It contains 10% solute and 90% solvent.

Think about a 10% saline solution (saline refers to salt.). Which of the following is a correct statement? It contains 10% solvent and 90% water. It contains 10% salt and 90% solution. It contains 10% solute and 90% solvent. It contains 10% solvent and 90% solute.

hair

This accessory organ of the skin is composed primarily of dead, keratinized cells. eccrine gland apocrine gland hair sebaceous gland

cranial

This body cavity is encased in bone. pelvic abdominal cranial thoracic

dense regular

This connective tissue is packed with parallel collagen fibers, attaches muscles to bone, and can withstand great stress when pulled in one direction. dense regular dense irregular fibrocartilage dense elastic

papillary layer

This layer of the dermis is responsible for fingerprints. areolar layer papillary layer deep stratum basale reticular layer

stratum lucidum

This layer of the epidermis contains translucent cells filled with keratin fibrils. It is found only in thick skin. stratum basale stratum lucidum stratum spinosum stratum granulosum stratum corneum

dermis

This region of the skin contains abundant elastic and collagen fibers. dermis epidermis both epidermis and dermis

anterior/posterior

This set of body terms for orientation and direction depends on anatomical position; the terms have different meanings for humans and four-legged animals.

epithelial

This tissue type is a covering and lining tissue. It includes glands. muscle connective nervous epithelial

areolar

This type of connective tissue is found under epithelia, packaging organs, and surrounding capillaries. elastic cartilage areolar dense elastic reticular

smooth muscle

This type of muscle tissue is found in the walls of hollow organs. It has no striations, and its cells are spindle shaped. It is __________. cardiac muscle smooth muscle skeletal muscle

isotonic

To prevent cells from either shrinking or swelling you should keep them in a __________ solution pure water isotonic strong salt vinegar

upright, with one hand on its arm and the other hand supporting its base

To transport a microscope, hold it ________.

diffusion and filtration

Two important passive processes for membrane transport are ________. diffusion and filtration exocytosis and phagocytosis pinocytosis and receptor-mediated endocytosis facilitated diffusion and active transport

diffusion and filtration

Two important passive processes for membrane transport are ________. facilitated diffusion and active transport exocytosis and phagocytosis pinocytosis and receptor-mediated endocytosis diffusion and filtration

bases

What compounds form ions that bind hydrogen ions in water? acids salts bases all inorganic compounds

There is one carbon and four hydrogen atoms.

What does CH4 mean? This was involved in a redox reaction. There is one carbon and four hydrogen atoms. This is an inorganic molecule. There are four carbon and four hydrogen atoms.

Water is added to split apart organic compounds.

What happens during hydrolysis? Water is removed to join organic compounds. Water is added to join organic compounds. Water is added to split apart organic compounds. Water is removed to split apart organic compounds.

sagittal

What is a vertical section through the body, dividing it into left and right, called? transverse regional sagittal frontal

They are richly vascularized.

What is not true of epithelial cells? They have a free surface. They regenerate readily. They are bound together to form sheets. They are richly vascularized.

Kinetic energy is energy in action, while potential energy is stored energy.

What is the difference between kinetic and potential energy? Kinetic energy and potential energy are synonymous; they are defined as the capacity to do work, actively putting matter into motion. Kinetic energy is energy in action, while potential energy is stored energy. Kinetic energy is stored energy and has the capacity to do work; potential energy is expressed through motion. Kinetic energy may eventually become potential energy, but potential energy cannot become kinetic energy.

oxygen gas

Which of the following is NOT a compound? methane (natural gas) oxygen gas water carbon dioxide

Can be measured only by its effects on matter.

energy

Anything that occupies space and has mass.

matter

decomposition

ATP → ADP + Pi is an example of a(n) ________ reaction.exchange synthesis reversible decomposition

decomposition

ATP → ADP + Pi is an example of a(n) ________ reaction. exchange synthesis reversible decomposition

720

7.2 meters = ______ cm.

transverse

A ________ plane separates the body into top and bottom sections.

sagittal

A ________ section divides a structure into left and right pieces.

share

A covalent bond is formed when atoms ________ electrons.

Yes, glucose will move into the sac.

A dialysis sac that is permeable to glucose and water is filled with water and placed in a beaker containing 20% glucose solution. Will there be a net transport of glucose across the dialysis sac? If so, in which direction will the glucose move, into the sac or out of the sac? Yes, glucose will move into the sac. There is no net movement, but glucose will move back and forth across the membrane. Yes, glucose will move out of the sac. No, there is no force to drive glucose across the membrane.

Yes, water will move out of the sac.

A dialysis sac that is permeable to glucose and water is filled with water and placed in a beaker containing 20% glucose solution. Will there be a net transport of water across the dialysis sac? If so, in which direction will the water move, into the sac or out of the sac? Yes, water will move out of the sac. No, there is no force to drive the water across the membrane. Yes, water will move into the sac. There is no net movement, but water will move back and forth across the membrane.

white, red

A leukocyte is a _____ blood cell, and an erythrocyte is a _____ blood cell. fast, slow white, red hard, soft round, square

osmosis

A passive process, __________ is the movement of solute molecules from an area of greater concentration to an area of lesser concentration. osmosis diffusion

hydrogen

A property of water that is a result of its polarity is that it forms _________ bonds. covalent adhesion ionic hydrogen

stratum basale, stratum spinosum, stratum granulosum, stratum corneum

From deep to superficial, the layers of the epidermis of thin skin are ________. stratum granulosum, stratum spinosum, stratum corneum, stratum basale stratum corneum, stratum granulosum, stratum spinosum, stratum basale stratum spinosum, stratum basale, stratum corneum, stratum granulosum stratum basale, stratum spinosum, stratum granulosum, stratum corneum

tissues

Histology is the study of ________.

tissues

Histology would be best defined as a study of ________.the gross structures of the body cells cell chemistry tissues

by meiosis

How are gametes formed? by polyspermae by mitosis by meiosis by cytokinesis

3

How many basic types of muscle tissue are there? __________

23

How many chromosomes are in human sperm cells? 92 23 10 46

4

How many primary tissue types are found in the human body? __________

4

How many stages of mitosis are there? __________

distal

Human feet are ________ to the knee. distal posterior proximal superior

elements

Hydrogen, oxygen, carbon and nitrogen are __________. bases compounds acids elements

x350

If the ocular lens magnifies a specimen 10x, and the objective lens used magnifies the specimen 35x, what is the total magnification being used to observe the specimen? __________

450×

If your ocular lens is 10×, the total magnification when using the midrange 45× objective lens is ________.

active

In __________ processes, the cell provides energy in the form of ATP to power the transport process. passive active

phagocytosis

In __________, parts of the plasma membrane and cytoplasm extend and engulf a relatively large or solid material. pinocytosis phagocytosis

feet are slightly apart, and the toes point forward

In anatomical position, the ________. head is turned to the side human is sitting feet are slightly apart, and the toes point forward upper limbs hang in a natural position at the side of the body

both require a concentration gradient

In comparing simple diffusion to facilitated diffusion, you note that ________. both require ATP both can move substances up, as well as down, a concentration gradient both require a specific carrier or protein channel both require a concentration gradient

fluid and solutes out of the capillaries and into the kidney tubules

In the body, filtration is important in moving ________. fluid and solutes out of the capillaries and into the kidney tubules blood around the circulatory system lymph fluid through lymph vessels all of these

product

In the equation A + B --> AB, the substance AB is the __________. reactant product finals starter

impaired nerve impulse transmission

Kidneys play a major role in helping to maintain proper levels of Na+ and K+ ions in the blood. If the kidneys fail to function properly, one of the direct consequences would be_________. salt deposits in many regions of the body impaired nerve impulse transmission the blood becoming too concentrated all of the above

Combined number of protons and neutrons in an atom.

Mass number of an element

phagocytosis

Membrane transport may be passive or active. Select the active process from the list below. phagocytosis filtration diffusion osmosis

phagocytosis

Membrane transport may be passive or active. Select the active process from the list below. phagocytosis filtration osmosis simple diffusion

lens further away from the slide

Microscope specimens have depth, as well as length and width. If you are focused on the middle layer of cells and wish to see the top layer of cells clearly, you should move the ________. lens closer to the slide slide to the left or right lens further away from the slide slide toward or away from you

Combination of two or more atoms of the same element held together by chemical bonds.

Molecule

are long, can have many nuclei, and can have striations

Muscle cells ________. are long can have striations can have many nuclei are long, can have many nuclei, and can have striations

cells

Name the structural and functional unit of all living things. __________

dermal reticular layer

Pressure receptors, called Pacinian corpuscles, are located in this layer of the integument. dermal papillary layer epidermal stratum basale epidermal stratum spinosum dermal reticular layer

have DNA

Prokaryotic cells __________. have no cell membrane have a nucleus have no cytoplasm have DNA

gain water and undergo hemolysis

Red blood cells placed in a hypotonic solution will ________. gain water and undergo crenation gain water and undergo hemolysis lose water and undergo hemolysis lose water and undergo crenation

free in the cytoplasm

Ribosomes/ribosomal subunits are found ________.free in the cytoplasm associated with coiled DNA of chromosomes attached to the Golgi apparatus inside mitochondria

ionic compounds

Salts are always ________. double covalent compounds single covalent compounds ionic compounds hydrogen bonded

Isotopes of the same element have the same atomic number but differ in their mass number.

Select the correct statement about isotopes. All the isotopes of an element are radioactive. Isotopes of the same element have the same atomic number but differ in their mass number. Isotopes occur only in the heavier elements. All the isotopes of an element have the same number of neutrons but differing numbers of electrons.

pseudostratified

Select the tissue that is a simple epithelium. transitional areolar dense regular pseudostratified

true

T/F "Form fits function" means that structure is correlated to function.

true

T/F ATP is an unstable, high-energy molecule that provides body cells with a form of energy that is immediately usable.

false

T/F All animal cells have a cell wall.

false

T/F a weak base buffers an acid by completely dissociating and accepting all of the acid's H+.

true

T/F all organic compounds contain carbon and hydrogen.

true

T/F an atom's atomic mass is the total mass of all of its protons and neutrons.

true

T/F blood is a type of connective tissue.

true

T/F cartilage is a form of connective tissue.

false

T/F covalent bonds are generally less stable than ionic bonds.

false

T/F embryology concerns the structural changes that occur in an individual from conception through old age.

true

T/F hydrogen bonds are too weak to bind atoms together to form molecules, but they do hold different parts of a single large molecule in a specific three-dimensional shape.

False

T/F nonpolar molecules are the result of unequal electron pair sharing.

false

T/F nonpolar molecules are the result of unequal electron pair sharing.

true

T/F the cytoskeleton is made mostly of tiny tubes and filaments that help maintain the cell's shape.

true

T/F the fact that the hand is composed of 19 bones that permit it to move into different shapes and grip things is an example of the idea that "form fits function."

false

T/F the pancreas is part of the skeletal system.

nosepiece

The ________ of the microscope carries three or four objective lenses. arm base ocular nosepiece

kidney, lung

The __________ is part of the urinary system, and the __________ is part of the respiratory system. liver, stomach heart, tonsil kidney, lung lung, spleen

sagittal

The __________ plane runs longitudinally and divides the body into right and left sides. sagittal transverse ventral frontal

nervous

The __________ system is responsible for maintaining homeostasis of the body via rapid transmission of electrical signals.

resolution

The ability to discriminate two close objects as separate is called ________. virtual image parfocal resolution working distance

dorsal

The body cavities that protect the nervous system are located in the ____ cavity. ventral cranial dorsal vertebral thoracic

nucleotides

The building blocks of nucleic acids are called __________. saccharides nucleotides DNA units bases

all organisms are composed of one or more cells

The cell theory states that __________. all cells have organelles all organisms are composed of one or more cells cells can come from non-living material some living things are made of cells

ribosome

The cellular structure responsible for protein synthesis is the __________. mitochondrion ribosome nucleus nucleolus

the atoms are double bonded

The chemical symbol O=O means ________. this is an ionic bond with two shared electrons both atoms are bonded and have zero electrons in the outer orbit the atoms are double bonded zero equals zero

the atoms are double bonded

The chemical symbol O=O means ________. this is an ionic bond with two shared electrons both atoms are bonded and have zero electrons in the outer orbit the atoms are double bonded zero equals zero

cranial; vertebral

The dorsal body cavity can be divided into the __________ cavity, which contains the brain, and the __________ cavity, which contains the spinal cord. thoracic; vertebral cranial; sural cranial; vertebral thoracic; sural

Kinetic energy is energy in action, while potential energy is stored energy.

What is the difference between kinetic and potential energy? Kinetic energy and potential energy are synonymous; they are defined as the capacity to do work, actively putting matter into motion. Kinetic energy may eventually become potential energy, but potential energy cannot become kinetic energy. Kinetic energy is energy in action, while potential energy is stored energy. Kinetic energy is stored energy and has the capacity to do work; potential energy is expressed through motion.

keratinocytes

What is the most common cell type in the epidermis? macrophages fibroblasts keratinocytes dendritic cells

Sensory receptors are present in each.

What is true about both the epidermis and the dermis? They are highly vascular. Each consists, in part, of dead and dying cells. Sensory receptors are present in each. Papillae and ridges are present in each.

Epidermis is avascular and dermis is richly vascularized.

What is true about the blood supply to the skin? Both epidermis and dermis are poorly vascularized. Epidermis is richly vascularized and dermis is avascular. Both epidermis and dermis are richly vascularized. Epidermis is avascular and dermis is richly vascularized.

hydrogen bonding

When DNA is replicated, it is necessary for the two strands to "unzip" temporarily. Choose which bonding type is most appropriate for holding the strands together in this way. polar covalent bonding ionic bonding non-polar covalent bonding hydrogen bonding

diffusion

When molecules move down their concentration gradient, it is called __________. exocytosis diffusion active transport endocytosis

lowest

When studying a slide in a microscope, begin focusing with the ________-power objective lens in place. midrange highest lowest

thoracic

Which body cavity is further separated into other cavities?thoracic abdominopelvic pleural pericardial

superficial

Which directional term is used to describe the relationship of the skin to the skeletal muscles? deep superficial medial lateral Submit

carbon, oxygen, hydrogen, and nitrogen.

Which four elements comprise approximately 96% of our body weight? carbon, oxygen, hydrogen, and nitrogen. carbon, oxygen, hydrogen, and potassium. carbon, oxygen, iron, and potassium carbon, oxygen, potassium, and sodium.

organismal

Which level of structural organization is considered to be the highest level? organismal organ cellular chemical

metabolism

Which life process, which relies heavily on nutrient inputs from the respiratory and digestive systems, sustains all other life processes? responsiveness movement metabolism reproduction

skeletal

Which muscle tissue type is controlled voluntarily? skeletal smooth cardiac cardiac and smooth

an atomic structural variation in which atoms have differing numbers of neutrons

Which of the following best describes an isotope? an atomic structural variation in which atoms have differing numbers of neutrons an atomic structural variation in which atoms have differing numbers of electrons an atomic structural variation in which atoms have valence shell difference an atomic structural variation in which atoms have differing numbers of protons

pinocytosis

Which of the following endocytotic processes is important for moving fluid into cells? phagocytosis receptor-mediated endocytosis for water receptor-mediated endocytosis for hormones pinocytosis

The weight of matter remains constant wherever it is located.

Which of the following is FALSE? With some exceptions, matter can be seen, smelled, and felt. Matter exists in solid, liquid, and gaseous states. The mass of matter remains constant wherever it is located. The weight of matter remains constant wherever it is located.

The weight of matter remains constant wherever it is

Which of the following is FALSE? With some exceptions, matter can be seen, smelled, and felt. The weight of matter remains constant wherever it is located. Matter exists in solid, liquid, and gaseous states. The mass of matter remains constant wherever it is located.

Mixtures are homogeneous while compounds are heterogeneous.

Which of the following is NOT a difference between a compound and a mixture? No chemical bonding occurs between the components of a mixture. The properties of atoms and molecules are not changed when they become part of a mixture. Mixtures can be separated by physical means, such as straining, filtering, or evaporation. Compounds can only be separated into their constituent atoms by chemically breaking bonds. Mixtures are homogeneous while compounds are heterogeneous. Some mixtures are homogenous, while others are heterogeneous. All compounds are homogeneous.

water

Which of the following is NOT an element? chlorine oxygen water nitrogen

The substrate absorbs chemical energy from the enzyme after binding to its active site.

Which of the following is NOT one of the three basic steps involved in enzyme activity? The enzyme-substrate complex undergoes internal rearrangements that form the product(s). The enzyme releases the product(s) of the reaction. The enzyme's active site binds to the substrate(s) on which it acts, temporarily forming an enzyme-substrate complex. The substrate absorbs chemical energy from the enzyme after binding to its active site.

hyperbolic

Which of the following is NOT one of the three major types of chemical reactions? exchange synthesis hyperbolic decomposition

protein

Which of the following is a polymer? nucleotide protein fatty acid monosaccharide

HCl

Which of the following is an NOT an organic compound? sugar HCl nucleic acid protein

vinegar

Which of the following is an acid? starch pure water ammonia vinegar

islets of Langerhans

Which of the following is an eponym? CPR islets of Langerhans AIDS HIV

MgO2 → Mg + O2

Which of the following is an example of a decomposition reaction? 2Na + Cl2 → 2NaCl MgSO4 + 2NaCl → MgCl2 + Na2SO4 MgO2 → Mg + O2 H2 + O → H2O

urinary

Which of the following is an organ system? lungs heart brain urinary

dehydration synthesis

Which of the following is the opposite of hydrolysis? anabolic reactions dehydration synthesis homeostasis hydration synthesis

The reactivity of an atom is based on the number of electrons in its outer valance.

Which of the following is true? The reactivity of an atom is based on the number of electrons in its outer valance. The chemical reactivity of an atom is based on the overall number of electrons in the atom. Atomic weight is determined by the number of protons in an atom of a given element. Atomic weight is determined by the number of electrons in an atom of a given element.

7

Which of the following pH values is neutral? 3 100 7 10

white pigments in skin cells

Which of the following pigments is not involved in determining skin color? carotene from carrots and yellow vegetables melanin produced by skin cells white pigments in skin cells red pigments in blood

metatarsal

Which of the following regional anatomy terms matches the anatomical description "anterior and most distal"? carpal acromial metatarsal popliteal

Larger particles move faster than smaller ones and thus collide more frequently and more forcefully.

Which of the following statements is false? Catalysts increase the rate of chemical reactions, sometimes while undergoing reversible changes in shape. Chemical reactions progress at a faster rate when the reacting particles are present in higher numbers. Chemical reactions proceed more quickly at higher temperatures. Larger particles move faster than smaller ones and thus collide more frequently and more forcefully.

Active processes require ATP.

Which of the following statements is true? Passive processes move molecules against a concentration gradient. Active processes require ATP. Passive processes require ATP. Active processes move molecules along a concentration gradient.

They produce sweat.

Which of the statements below is true for both eccrine and apocrine glands? They may have a pheromone-producing function. Their sweat contains water, salts, proteins, and fats. They produce sweat. They are involved in temperature regulation.

proteins

Which organic molecules form the major structural materials of the body? calcium salts in bones carbohydrates lipids proteins

transverse

Which type of plane divides the body into top and bottom sections?

axial

With regard to surface anatomy __________ refers to the structures along the center line of the body. abdominal axial

organs

_______ are groups of tissues organized to perform some common function.

mitosis

_______ is the part of the cell cycle, or lifetime, in which the nucleus divides.

muscle

_______ tissue is responsible for producing movement of body parts.

Apocrine

__________ glands are found primarily in the genital and axillary areas. Eccrine Apocrine