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Bio 1 final review
Bio 1 final review
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1
Enzymes affect the reactions in living cells by changing the
products of the reaction.
speed of the reaction.
pH of the reaction.
2
Which structure in Figure 7–2 stores materials like water, salts, proteins, and carbohydrates?
structure D
structure A
structure B
structure C
3
Matter can recycle through the biosphere because
matter does not change into new compounds.
biological systems do not use up matter, they transform it
matter is assembled into chemical compounds.
4
The biology that deals with interactions among organisms & between them & their environment is
modeling.
economy.
ecology.
5
Demography is the scientific study of
modernized countries.
parasitism and disease.
human populations.
none of the above
6
When salt is dissolved in water, water is the
reactant.
solute.
solvent.
7
Which of the following is a food chain in the food web shown in Figure 3–4?
grass, caterpillar, robin, hawk
tree, deer, mountain lion, fox
grass, grasshopper, snake, hawk
8
What would happen if bird population shown in the ecosystem in 4–1 were to suddenly decrease?
The grass population would increase.
The grass and fish would compete for resources.
The fish population would increase.
9
Which of the following is NOT a principle of the cell theory?
All living things are made of cells.
Cells are the basic units of life.
Very few cells are able to reproduce.
10
What goes in Box 5 of the food web in Figure 3–2?
herbivores
decomposers
carnivores
11
Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
The cell lacks a cell membrane.
The cell lacks a nucleus.
The cell lacks cytoplasm.
12
An example of a renewable resource is
oil.
trees.
coal.
13
What is the correct equation for cellular respiration?
6CO2 + 6H2O + Energy → 6O2 + C6H12O6
6CO2 + 6H2O → 6O2 + C6H12O6 + Energy.
6O2 + C6H12O6 → 6CO2 + 6H2O + Energy
14
Which of the following conclusions could you draw about the cell shown in Figure 7–1?
The cell is eukaryotic because it does not have a nucleus.
The cell is eukaryotic because it has a nucleus.
The cell is prokaryotic because it has a nucleus.
The cell is prokaryotic because it does not have a nucleus.
15
Which of the following is true about nonrenewable resources?
Using them up will help keep the environment healthy.
They cannot be replaced after they are used up.
There are plenty for people to use for a very long time.
16
A covalent bond is formed as the result of
sharing protons.
transferring protons.
sharing electrons.
17
A model of feeding interactions among organisms in from producers to decomposers is called a
food web.
ecosystem.
population.
18
Which of the following is a density-independent limiting factor?
emigration
earthquake
parasitism
19
Animals get the most of the nitrogen they need
by consuming plants or other animals.
directly from bacteria in the soil.
by breathing in atmospheric nitrogen.
20
What type of ion forms when an atom loses electrons?
positive
neutral
radioactive
21
When hydrogen and oxygen combine to form water, water is
a catalyst.
a reactant.
a product.
22
How do most primary producers make their own food?
by using light energy to make carbohydrates
by changing water into carbon dioxide
by using chemical energy to make carbohydrates
23
Introduced species can threaten biodiversity because they can
cause desertification.
cause biological magnification.
crowd out native species.
reduce the amount of fertile land.
24
Which represents levels of organization in multicellular organism from the simplest to complex?
cell, tissue, organ, organ system
tissue, organ, organ system, cell
cell, tissue, organ system, organ
25
The algae at the beginning of the food chain in Figure 3–1 are
heterotrophs.
primary consumers.
primary producers.
26
The products of photosynthesis are the
reactants of fermentation.
reactants of cellular respiration.
products of cellular respiration.
27
Energy is released from ATP when
a phosphate group is removed.
a phosphate group is added.
ATP is exposed to sunlight.
28
The graph in 5–1 shows the growth of a bacteria population. Which describes the growth curve?
limiting
logistic
exponential
demographic
29
Which structure in 7–3 modifies/sorts/packages proteins & other materials for storage/release?
structure A
structure C
structure B
30
What is a product of the Calvin cycle?
carbon dioxide gas
high-energy sugars
oxygen gas
31
A personal preference or point of view is
a bias.
a theory.
a hypothesis.
32
Science is best described as a
collection of beliefs.
set of facts.
way of knowing.
33
Why is the metric system easier to use than the English system?
Metric units are easier to measure than English units.
Metric units are smaller than English units.
The metric system is based on multiples of 10.
34
Ideally, sustainable development should
preserve ecosystems while providing for human needs.
provide for human needs at the expense of the environment.
use more natural resources to make goods for human needs.
35
What is one difference between primary and secondary succession?
Secondary succ. begins with lichens; primary with trees.
Secondary succ. begins on soil; primary on new surfaces.
Primary succession is rapid and secondary succession is slow
36
What type of electron is available to form bonds?
valence
ionic
nucleus
37
In chemical reactions, atoms are
rearranged.
neutralized.
destroyed.
38
What happens when chlorophyll is struck by sunlight?
The electrons in the chlorophyll molecule become energized.
The chlorophyll molecule is broken into two parts.
A chemical reaction turns chlorophyll into high energy carbs
39
Based on observation, you suggest that water could accelerate the growth of bread mold. This is
a hypothesis.
an analysis.
an experiment.
40
The number of different species in the biosphere or in a particular area is called
ecosystem diversity.
genetic diversity.
species diversity.
41
Which pathway represents the flow of electrons during photosynthesis?
O2 → ADP → Calvin cycle
H2O → Photosystem I → Photosystem II
H2O → NADP+→ Calvin cycle
42
The air bubbles and spongy texture of bread are due to which process?
alcoholic fermentation
the Krebs cycle
lactic acid fermentation
43
Which means of particle transport is shown in Figure 7–4?
osmosis
diffusion
active transport
44
A student is collecting gas given off from a plant in bright sunlight at. The gas is probably
oxygen.
ATP.
glucose.
45
The work of scientists usually begins with
testing a hypothesis.
careful observations.
drawing conclusions.
46
Using Figure 5–2, what is the most likely cause of the decrease in moose population after 1995?
Poisonous plants killed off many moose.
Many moose reached old age and died.
Overcrowding caused competition in the moose population.
47
What is a valid conclusion that can be drawn from the graph in Figure 6
–
3 above?
Energy consumption has changed more than total emissions.
Pollution increases as energy consumption increases.
Though people are driving more, pollution has decreased.
48
The diffusion of water across a selectively permeable membrane is called
osmotic pressure.
active transport.
osmosis.
49
Which is one of the ways that cellular respiration and photosynthesis are opposite processes?
Photosynthesis uses glucose. Respiration produces glucose.
Photosynthesis removes CO2 from atmosphere. Resp replaces it
Photosynthesis removes O2 from atmosphere. Resp replaces it.
Photosynthesis releases energy. Respiration stores energy.
50
Biodiversity is valuable partly because it
contributes to medicine and agriculture.
tells us about many other species.
provides humans with resistance to disease.
51
During diffusion, when concentration of molecules on both sides of a membrane is =, molecules
continue to move across the membrane in both directions.
stop moving across the membrane.
move across the membrane to the outside of the cell.
52
What is shown in Figure 6–2 above?
point source pollution
nonpoint source pollution
water treatment
53
Which of the following is a function of the cell membrane?
regulates the movement of materials into & out of the cell
stores water, salt, proteins, and carbohydrates
keeps the cell wall in place
54
A symbiotic relationship in which both species benefit is
predation.
commensalism.
mutualism.
55
Plants get the energy they need for photosynthesis by absorbing
sunlight.
high-energy sugars.
chlorophyll a.
56
A well-tested explanation that explains a lot of observations is
a controlled experiment.
a theory.
an inference.
57
Water molecules are polar, with the
O side being slightly negative; H side slightly positive.
oxygen and hydrogen sides being slightly positive.
O side being slightly positive; H side slightly negative.
58
Lactic acid fermentation occurs in
muscle cells.
any environment containing oxygen.
mitochondria.
59
Which statement is true about macromolecules?
Simple sugars are made of polysaccharides.
Proteins are made of amino acids.
Glycerol is made of fatty acids.
60
Which explains why well-conditioned athletes pace themselves for events lasting several hours?
Alcoholic fermentation produces carbon dioxide
Lactic acid fermentation can cause muscle soreness.
Heavy breathing is needed to get rid of lactic acid.
Cellular resp releases energy more slowly than fermentation.
61
If the pH of stomach acid and of oven cleaner were measured,
both would be below 7.
pH of stomach acid would be < 7; oven cleaner would be > 7.
pH of stomach acid would be > 7; oven cleaner would be < 7.
62
How does society help science advance?
Society raises questions that science can help answer.
Society’s morals help scientists make good decisions.
Society’s biases steer science toward studying certain ideas
63
Which organelle would you expect to find in plant cells but not animal cells?
ribosome
smooth endoplasmic reticulum
chloroplast
64
A bird stalks, kills, and eats an insect. Which pair of ecological terms describes the bird?
carnivore, consumer
autotroph, herbivore
herbivore, decomposer
65
Why is carbon so special compared to other elements?
C atoms can bond to one another & form many structures.
C atoms have 4 valence electrons & can form quadruple bonds.
Only C atoms can form covalent bonds with oxygen & hydrogen.
66
The movements of energy and nutrients through living systems are different because
energy is limited in biosphere; nutrients r always available
energy flows in one direction, and nutrients recycle.
nutrients flow in one direction, and energy recycles.
67
What helps the inside of the thylakoid membrane get a + charge in light-dependent reactions?
H+ ions are released as water splits.
ATP synthase allows H+ ions to pass through the membrane.
ATP synthase produces ATP from ADP.
68
Glycolysis provides a cell with a net gain of
2 ATP molecules.
18 ATP molecules.
4 ATP molecules.
69
The human population experienced exponential growth just after
agriculture began.
the bubonic plague began.
the Industrial Revolution began.
70
In a logistic growth curve, exponential growth is the phase in which the population
reaches carrying capacity.
growth begins to slow down.
grows quickly.
71
A wolf pack hunts, kills, and feeds on a moose. In this interaction, the wolves are
mutualists.
predators.
prey.
72
What are the three kinds of ecological pyramids?
energy, biomass, and numbers
energy, nutrient, and trophic
producer, consumer, and decomposer
73
Protecting an entire ecosystem ensures that
interactions among many species will be preserved.
existing parks and reserves will expand.
captive breeding programs will succeed.
74
Which of the following could describe a population that is decreasing in size?
The death rate is constant and the birthrate is increasing.
The death rate is becoming lower than the birthrate.
The death rate is becoming higher than the birthrate.
75
If a population grows larger than carrying capacity, which of these is most likely to happen?
The death rate may rise.
The birthrate must fall.
The death rate must fall.
76
Which of the following is an example of an organ?
heart
nerve cell
digestive system
77
Water lilies don't grow in desert sand because water availability to plants in a desert is
the logistic growth curve.
a limiting factor.
the carrying capacity.
a competition factor.
78
A group of similar cells that perform a particular function is called
an organ system.
a division of labor.
a tissue.
79
An organism’s niche is
phys/bio cond where organisms live +how obtain needs to surv
all the physical/biological factors in organisms environment
a full description of the place an organism lives.
80
Process by which organisms keep everything inside their bodies within certain limits is called
metabolism.
homeostasis.
photosynthesis.
81
Which structure makes proteins using coded instructions that come from the nucleus?
ribosome
Golgi apparatus
mitochondrion
82
Photosynthesis uses sunlight to convert water and carbon dioxide into
ATP and oxygen.
oxygen and carbon.
oxygen and high-energy sugars.
83
Cellular respiration uses 1 molecule of glucose to produce approximately
32 ATP molecules.
4 ATP molecules.
36 ATP molecules.
84
Which of the following is a biological aspect of an organism’s niche?
composition of soil
amount of sunlight
the way it gets food
85
Unlike photosynthesis, cellular respiration occurs in
prokaryotic cells only.
animal cells only.
all eukaryotic cells.
plant cells only.
