MISSED TEAS QUESTIONS
how many hydrogen atoms does one molecule of water have?
2
If the diameter of a cell is 15 micrometers, what is the cell's volume?
3,600 cubic micrometers (cell's diameter is 15 micrometers) 15x15x15=3,600
How many stages are there in the mitosis asexual reproduction process?
5 stages
which two items react during cellular respiration?
Glucose & oxygen
large biological molecules consisting of one or more chains of amino acids
Protein
what is the site of protein synthesis within a cell called?
Ribosome
two principal organs of the circulatory system are the heart and the?
blood vessels
deposition of a lquid or a solid from its vapor
condensation
The deposition of a liquid or solid from its vapor?
condenstaion
homeo?
constant
hetero
different
During what stage of photosynthesis is solar energy converted to chemical energy?
during light reactions
what hormone are associated with endometrium of the uterus?
estrogen & progesterone
The lungs do what?
expel carbon dioxide
unit membrane
forms the border of the cell and many of its organelles
which neurotransmitter stimulates the appetite for fatty foods?
galanin
fingernails belong to what system?
integumentary
which bond has a relatively weak attraction between an anion and a cation
ionic bond
what covalent bond are electrons equally attracted to both nuclei?
nonpolar covalent bond
which neurotransmitter stimulates the appetite for carbs?
norepinephrine
the main information carrying molecule of a cell?
nucleic acid
the combination of a substance with oxygen?
oxidation
the phase of matter made up of electrons and positive ions?
plasma
which type of molecule is water comprised of
polar
what covalent bond are electrons more attracted to one nucleus than another?
polar covalent bond
cellulose is what type of carb?
polysaccharide
the 3 main units of the metric system are?
meters, liters and grams
organelles are composed of?
molecules
which system acts as the body's control system?
nervous
what is communication between the PNS and the CNS called?
neuronal signaling
the esophagus is __________ to the trachea?
posterior
If a closed container of hydrogen gas is slowly increased from 15 c to 20 c with no change in volume, how will the pressure change?
pressure will increase. GAY-LUSSAC'S LAW OF GASES
what is the funciton of golgi bodies?
store & release proteins
organs are composed of?
tissue
what is the responibility of the diaphragm?
to control breathing
describe the purpose of centrioles
to form miotic spindles during cell division
skin consists of how many layers?
two.
list the 3 natural lipids
unsaturated, polyunsaturated and saturated
the conversion of a substance from the liquid or solid phase into a gaseous phase is called?
vaporization
list the 5 stages of mitosis
1-prophase 2-prometaphase 3-metaphase 4-anaphase 5-telophase
what is mitosis
A process of asexual reproduction in eukaryotic cells
what is a van der waals bond?
A slight attraction that develops between the oppositely charged regions of nearby molecules. (the weakest bond)
list the fat soluble viamins
A, D, E & K
define falsifiability
Ability to be tested/proven false
what is neuronal signaling?
Also called synaptic, a neurotransmitter crosses synapse to target cell and starts transduction
alleles are?
Alternative versions of a gene
what type of tissue are blood vessels
Connective
which type of chemical bond shares one or more pairs of electons between nuclei?
Covalent bonds
cellular differentiation doesn't change what?
DNA
What codes genetic information for the transmission of inherited traits?
Deoxyribonucleic acid
noble gases
Element with least electronegativity / complete valance shell.
the process by which an element or compound transitions from a liquid state to a gaseous state below the temp at which it boils?
Evaporation
an atom that has a net electric charge is known as?
Ion
what chemical property causes water to conduct electricity?
Ions
does a unit membrane surround ribosomes?
No.
What is the most specific level of the biological classifcation system?
Species
what is the correct term to describe the amount of heat necssary to raise the temp of 1 gram of a molecule by 1 degree celsius?
Specific heat
when considering a food chain that start with grass, then a rabbit eating the grass, and finally a hawk eating the rabbit, what is the original source of energy?
Sunlight
what type of chemical bond is considred to be the weakest of all bonds?
Van der waals bond
the non fat-soluble vitamin is?
Vitamin B (it is water-soluble)
deoxyribonucleic acid
What does DNA stand for?
a disaccharide is what?
a carbohydrate that is composed of two monosaccharides.
define photosynthesis
a light dependent proces that stores energy to prodcue food, consumes H20 and releases O2
which process is enabled by mitosis
a single cell divides to produce two identical daughter cells
hyper
above
The term to refer to two alternative versions of a gene?
alleles
what kind of molecule can react either as an acid or as a base?
amphoteric
If you observe centrosomes when studying cells through a microscope, which of these is the most likely source of the cells?
an adult human (centrosome is an organelle tha tis only found in human animals)
binary fission is a type of?
asexual reproduction used by most bacteria
a molecule is composed of?
atoms
the exchange of oxygen and carbon dioxide takes place where?
aveoli
hypo
below
tissue is composed of?
cells
salt provides what mineral requirement?
chloride
distribution of wastes is a principal function of what body sytem?
circulatory system
which neurotransmitter stimulates the appetite for protein?
endorphins
gherlin
hormone produced by your stomach when your hungry
what type of acid is prodcued in the stomach to break down food?
hydrochloric acid, Hydrochloric Acid
which type of chemcial bond has a weak attraction between polarized molecules?
hydrogen bonds
an atom with an equal number of protons but different number of neutrons
isotope
what is the reason ice floats on water
it forms a lattice when freezing (allows air to fill in gaps)
An organism is composed of?
organ systems
cells are composed of?
organelles
an organ system is composed of?
organs
List 3 principal functions of the urinary system
production of vitamin D, elimination/filtering of wastes, regulation of blood pressure/volume
what are two primary cell types?
prokaryotic & eukaryotic
what is the first stage of mitosis?
prophase
this is used to predict possible genotypes & phenotypes of offspring sexual reporduction
punnett square
which process is enabled by meiosis?
reproduction
The number of peple used in a study i sthe experiment's what?
sample size
what is not a type of natural lipid?
supersaturated lipid
what is the final phase of mitosis?
telephase
define sinus
the air-filled space in a bone
what best describes the term meatus?
the opening into a canal
what is the Gay-Lussac's law of gases?
the pressure in a closed system will increase as the temp increases
what best describes the term fissure?
the slit through a bone
Air is filted by what?
the trachea
describe the function of DNA
to synthesize RNA & protein
a cell that can differentiate into any other type of cell is called?
totipotent
