Biology Exam 1
what is the charge on a sulfur ion with 16 protons and 17 electrons? -+1 - -2 -0 - -1 - +2
- -2
Which of the following is not a domain? -Bacteria -Animalia -Archaea -Eukarya
- Animalia
You see a cockroach in the stairwell at Chattanooga State . You immediately think that this organism is in which domain? -Bacteria -Archaea -Eukarya -
- Eukarya
The following equation represents which process? 6CO2+6H2O+Light ---> C6H12O6+6O2 - Photosynthesis -Cellular respiration
- Photosynthesis
In ecosystems, the flow of __________ is one way , while __________ is/ are recycled within. - energy;chemicals -minerals; energy compounds -food; energy -genetic information; genotypes
- energy;chemicals
Atoms are defined by their - number of neutrons - number of protons plus the number of neutrons - number of electrons -number of protons
- number of protons plus the number of neutrons
carbon atom has an atomic number of 6. what is the correct distribution of electrons in the first and second shell? -3,3 -0,6 -4,2 -2,6 -2,4
-2,4
How is the community level different from the other levels of life? -A community is a collection of all the organisms living and potentially interacting in the same geographic area -A community is a group of multiple organs that work together to perform vital functions for the organism. -A community is a group of interacting individuals from one species that inhabit the same geographic area - A community is a collection of molecules and reactions that form the basic unit of all living things
-A community is a group of interacting individuals from one species that inhabit the same geographic area
How is the population level different from the other levels of life? -A population is a collection of all the organisms living and potentially interacting in the same geographic area -A population is a collection of molecules and reactions that form the basic unit of all living things. -A population is an individual living thing, such as a bacterium, fungus, protist, plant, or animal. -A population is a group of interacting individuals from species that inhabit the same geographic area.
-A population is a group of interacting individuals from species that inhabit the same geographic area.
Which of the following are inputs in cellular respiration? -oxygen only -carbon dioxide only -glucose only -both oxygen and glucose
-Both oxygen and glucose
Which of the following cycles within an ecosystem? -both energy and chemical nutrients -chemical nutrients -Energy
-Chemical nutrients
You see a cockroach in the stairwell at Chattanooga State. You identify that this organism in Domain____________ and the in kingdom ___________. -Areacha...Animalia -Eukarya ....Animalia -Animalia... Eukarya -Bacteria.... Fungi -Eukarya .... Protista
-Eukarya .... Protista
A single - celled organism, like Amoeba sp. or Paramecium sp. are in Domain _____________ and in Kingdom___________. -Eukarya...Animalia -Archaea.... Animalia -Protists...Eukarya -Eukarya...Protists - Protists... Bacteria
-Eukarya...Protists
The atomic number of an element is equal to the number of ____ found in the atoms of that element. -Protons -Electrons -Neutrons
-Protons
Which of the following describes a hypothesis? -a testable, suggested explanation for a particular phenomenon or set of observations -an established explanation well accepted by most scientists due to a large body of evidence -a proposed explanation for a phenomenon that cannot be tested for supporting evidence - a process by which scientists investigates a natural phenomenon or group of observations to accurately explain how the natural world works
-a testable, suggested explanation for a particular phenomenon or set of observations
Which of the following organisms demonstrate the characteristic of processing energy? -bacteria -freshwater fish -mushroom -grass -all of the above
-all of the above
Which of the following is not a domain? -bacteria -eukarya -archea -animalia
-animalia
The way elements react with each other is determined by the number of __________in their ____________ shell. -protons ;innermost -protons;outermost -electrons;outermost -neutrons;innermost -electrons;innermost
-electrons;outermost
Which of the following is NOT a characteristics shared by all living organisms, such as birds, trees, and bacteria, that distinguishes them from nonliving things? Although viruses share many traits with other living organisms, some people do not consider them to be alive. For this questions, you may disregard the viruses. -Composed of one or more cells -able to move around the environment - have levels of internal organization -maintain their internal environment using energy -the ability to reproduce offspring that are the same type as the parent
-have levels of internal organization
All of the following are examples of the four major elements contributing to 96% of the human body mass except -Carbon -nitrogen -hydrogen -iodine -oxygen
-iodine
Which of the following is not one of the four major elements found in living things? -nitrogen -iron -carbon -oxygen -hydrogen
-iron
Which of the following is carried out by living organisms but not all? -regulation -processing energy -photosynthesis -responding to the environment -growth and development
-photosynthesis
Which of the following are capturing light energy in an ecosystem? -producers -consumers -fungus -decomposers -heterotrophs
-producers
Your body works to keep your internal temperature constant. This process of homeostasis is an example of which characteristic of life? -order -response to the environment -energy processing -evolution -reproduction -regulation -growth and development
-regulation
A patient is brought to the emergency room. To determine if the patient is dead or alive , the doctor shines light in the patient's eyes. which characteristics of life is the doctor evaluating? -reproduction -adaptation -energy processing -response to stimuli -all of the above
-response to stimuli
Protons have a mass of _____ and _____charge. 0...negative 1...negative 1...no 1...positive 0...positive
1...positive
The atomic number of carbon is 6. How many electrons would be in the outer shell of a carbon atom? 4 5 2 3 8
4
What is the pH of human blood
7.4 (slightly basic)
The atomic number of neon is 10. How many electrons would be in the outer shell of a neon atom? 10 8 6 4 2
8
Define adaptation
All living organisms exhibit a "FIT" to their enviroment
Development
All of the changes an organisms undergoes during its lifetime
Metabolism
All of the chemical reactions that occur within an organism
What is a multicellular organism
An organism made of many cells
Organism
Dog
Mushrooms are in the Domain
Eukarya
How does a single celled organism reproduce ?
First duplication their DNA, then dividing it equally as a cell prepares to divide to form the new cells
Response to stimuli
Living things adjust and respond to changes in their internal and external environments.
Electrons have _____ charge and are found _____ the nucleus of an atom. Positive...outside No...inside Negative...inside No...outside Positive...inside Negative...outside
Negative...outside
Give an example of a regulatory mechanism
Organ Systems
Define homeostasis
Organisms are able to maintain internal conditions within a narrow range almost constantly despite environmental changes
You should expect to find which particles in the nucleus of an atom? Electrons and protons Electrons and neutrons Protons and neutrons Electrons, protons, and neutrons
Protons and neutrons
What is a single celled organism
Remarkable complex
Short video clip on Mimosa pudica. what is the stimulus?
Something that rouses or incites to activity
A population
Species living within a specific
What determines how an organisms will grow and develop?
Specific instructions coded for by their genes
organ system
Stomach
Both plants and animals exhibit response to stimuli T/F
T
Reproduction
The formation of a new organism from parent organisms
organization
The orderly arrangement of an organism's cells structures and entire body
Define Biology
The study of life
How does a multicellular organism reproduce?
When it occurs DNA containing genes is passed along to an organisms offsprings.
A community
a set of populations inhabiting a particular area
Ecosystem
all the living things in a particular area together with the abiotic, or non-living , parts of that environement such as nitrogen in the soil or rainwater.
A scientific hypothesis is
an educated guess explaining an observation
forms when an atom gains an electron
anion
negative charge
anion
Prokaryote
are single celled organisms that lack organelles surrounded by a membrane and do not have nuclei surrounded by nuclear membranes; in contrast, the cells of Eukaryotes do have membrane - bound organelles and nuclei.
Levels of organization of living things
atom, molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
The soduim ion in NaCI
cation
forms when an atom loses an electron
cation
postive charge
cation
The most basic level in the biological hierarchy which demonstrates the quality of life.
cell
Water sticking to the cell walls of plants is an example of
cohesion
do not break in water
covalent bond
form when atoms share electrons
covalent bonds
phylogenetic tree
diagram showing evolutionary relationships of organisms with a common ancestor; resembles a tree
Which term is used to describe the living and non-living components of a forest?
ecosystem
How an atom behaves when it comes in contact with other atoms is determined by its
electrons
Orbits around the nucleus
electrons
if lost or gained forms an ion
electrons
negatively charged
electrons
What type of bond attracts two different water molecules toward one another?
hydrogen
come apart when mixed with water
ionic bond
form when one atom donates electron(s) to another
ionic bond
oppositely charged ions are attracted to each other
ionic bond
A molecule
is a chemical structure consisting of at least two atoms held together by a chemical bond.
The biosphere
is the collection of all ecosystems, and it represents the zones of life on earth. It includes land, water, and portions of atmosphere.
The atom
is the smallest and most fundamental unit of matter.
Most hydrogen atoms have on proton. However , some hydrogen atoms have one or two neutrons also. These atoms of hydrogen would be
isotopes
Tissue
muscle
The oxygen atom of a water molecule has partial ______ charge.
negative
Organ
neuron
neutral charge
neutron
electrons are not shared equally by the atoms in the bond
nonpolar bond
the bond between oxygen atoms in oxygen gas (O2)
nonpolar bond
Steps of the Scientific Method
observation, hypothesis, experiment, conclusion
Properties of Life
order, regulation, growth and development, energy processing, response to the environment, reproduction, evolution
A covalent chemical bond is one in which
outer-shell electrons are shared by two atoms so as to satisfactorily fill the outer electron shells of both
electrons are shared equally by the atoms in the bond
polar bond
the bond holding together the oxygen and hydrogen in a water molecule
polar bond
What type of bonds holds the oxygen and hydrogen atoms together within a water molecule?
polar covalent
potassium is usually written as K+. The postive charge on the potassium ion means that potassium has gained an electron and is a cation. potassium has gained an electron and is a anion. potassium has lost an electron and is a cation. potassium has lost an electron and is a anion.
potassium has lost an electron and is a cation.
postively charged
proton
Cellular
respiratory
in making a cup of an instant sports drink, you empty the packet into a bottle of water. in this solution, the water is the
solvent
Matter occupies ______ and has _______.
space and mass
Fluorine atoms tend to take electrons from any atoms that come near. As a result, fluorine atoms _____.
tend to form ionic bonds
Responsiveness
the ability of an organism to adjust to changes in its environment
Define metabolism
the chemical processes that occur within a living organism in order to maintain life.
Chemical
water
