Biochemistry - Cell Structure and Compartments
Exercise :: Cell Structure and Compartments - Section 1
- Cell Structure and Compartments - Section 1
| 6. |
Microtubules, motor proteins, and actin filaments are all part of |
| A. |
the mechanism of photosynthesis that occurs in chloroplasts | | B. |
the rough ER (endoplasmic reticulum) in prokaryotic cells | | C. |
the cytoskeleton of eukaryotic cells | | D. |
the process that moves small molecules across cell membranes |
Answer: Option C
Explanation:
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| 7. |
A certain cell organelle which is made of a double phospholipid bilayer that has many large pores in it, is most likely |
| A. |
the nuclear envelope | | B. |
the plasma membrane | | C. |
the mitochondrion | | D. |
the cytoskeleton |
Answer: Option A
Explanation:
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| 8. |
Which of the following cell organelles are expected to be associated with motor proteins? |
| A. |
Smooth ER | | B. |
Vesicles | | C. |
Plasma membrane | | D. |
Chloroplasts |
Answer: Option B
Explanation:
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| 9. |
Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization |
| A. |
makes each compartment nutritionally independent of all others | | B. |
allows for specialization through the subdivision of particular tasks | | C. |
allows for specialization through merging of different tasks | | D. |
reduces overall cell size |
Answer: Option B
Explanation:
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| 10. |
An organism's first line of defense against attack by an invader such as a virus or bacterium is usually |
| A. |
to flee or hide | | B. |
its body wall | | C. |
a specific immune response | | D. |
a nonspecific immune response |
Answer: Option B
Explanation:
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