AnswersCMS 2026-2027 Biology CREDIT RECOVERYCellular Structure and Function

Practice Test Answers

12 verified answers
1
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Which is a function of the cell membrane?

A
performs photosynthesis
B
produces proteins
C
controls what enters and leaves the cell
D
provides energy to the cell
2
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Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

A
There would be no difference between the functioning of the cells because the chloroplasts are not essential cell structures.
B
The second cell would become larger because it would have fewer chloroplasts regulating its size and shape.
C
The second cell would not be able to produce as much food because it could not capture very much sunlight.
D
The second cell would shrink because it would not be able to store water and maintain cell shape.
3

Which best describes stem cells?

A
Differentiation produces stem cells from specialized cells.
B
Self-renewal produces specialized cells from differentiated cells.
C
Self-renewal produces differentiated cells from stem cells.
D
Differentiation produces specialized cells from stem cells.
6

Which homeostatic process is characterized by the diffusion of only water molecules?

A
passive transport
B
dynamic equilibrium
C
active transport
D
osmosis
7

Which organelles are not found in plant cells?

A
chloroplasts
B
centrioles
C
vacuoles
D
mitochondria
8

Which microscope uses a probe to map atoms on the surface of a specimen?

A
scanning tunneling microscope
B
transmission electron microscope
C
scanning electron microscope
D
compound light microscope

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