Transcript Crct-prep---2-1

S7L2.a
CRCT Preparation
1. To grow and divide, the cells of all organisms need nutrients. What
type of organism gets nutrients from eating other organisms?
A a producer
B a lipid
C a consumer
D a carbohydrate
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S7L2.b
CRCT Preparation
2. Mitochondria are important organelles within a cell. What would most
likely happen if a cell’s mitochondria were not functioning properly?
A The cells would use lysosomes to release energy.
B The cell’s level of ATP would decrease.
C The cell would create new mitochondria by cell division.
D The cell’s level of sugar would decrease.
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S7L2.a
CRCT Preparation
3. What is the function of chloroplasts?
A to convert sunlight, carbon dioxide, and water into ATP
B to release the energy stored in sugar
C to convert sunlight, sugar, and oxygen into carbon dioxide and water
D to convert sunlight, carbon dioxide, and water into sugar and oxygen
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S7L4
CRCT Preparation
During a laboratory experiment, Rosalind made the illustrations of a
cell and a large particle. In a process called endocytosis, the large particle
is brought into the cell. Which of the following statements correctly
summarizes this process?
4.
A The particle passes directly through a protein channel in the cell membrane.
B The cell membrane surrounds the particle and forms a vesicle which is
brought into the cell.
C The particle passes directly through the lipids that make up the cell
membrane.
D The particle uses osmosis to pass through the cell membrane.
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S7L4.a
CRCT Preparation
5. Nitrogen fixation occurs when
A bacteria in the soil change nitrogen gas into forms that plants can use.
B bacteria in the soil release nitrogen gas into the atmosphere.
C bacteria in the soil take up nitrogen from the soil.
D bacteria in the atmosphere change nitrogen gas into forms animals can
use.
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S7L4.c
CRCT Preparation
6. Over a long period of time, a lake ecosystem can become a forest
ecosystem. The decomposition of dead plant and animal matter is a part
of this process. Which of the following organisms would most likely be
responsible for decomposing the dead plant and animal matter in a lake?
A bacteria
B clams
C grasses
D snails
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S7L2.C
CRCT Preparation
7. Which of the following statements correctly describes an organ and
the organ system to which it belongs?
A The brain is part of the muscular system.
B Bones are part of the skeletal system.
C The heart is part of the integumentary system.
D The lungs are part of the integumentary system.
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S7L4.b
CRCT Preparation
8. What is the primary source of energy for all organisms?
A carbohydrates
B ATP
C sunlight
D glucose
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S7L4.d
CRCT Preparation
9. The characteristics of a praying mantis allow it to be camouflaged by
the green stems of plants. While camouflaged, a praying mantis can feed
on other insects that inhabit or feed on a plant. If a praying mantis feeds
on natural predators of a plant, what type of relationship is occurring
between the praying mantis and the plant?
A camouflage
C mutualism
B competition
D parasitism
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S7L4.a
CRCT Preparation
10. Which organism would best fit in the
empty spot in the food web shown?
A a prairie dog
B a turkey vulture
C a fox
D a blue jay
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Answer Key
1.
2.
3.
4.
5.
C
B
D
B
A
6. A
7. B
8. C
9. C
10. D
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