Review Questions
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| 1. |
A
microscope has an ocular lens with a magnification of 10x and objective
lenses with magnifications of 10x, 20x, 30x, and 43x. Which of the
following are not possible magnifications that can be achieved with
this microscope? |
| (A) |
10x |
| (B) |
100x |
| (C) |
200x |
| (D) |
300x |
| (E) |
430x |
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| 2. |
Which
of the following are features of the prokaryotic cell? |
| (A) |
Nucleus |
| (B) |
Ribosomes |
| (C) |
Mitochondria |
| (D) |
Vacuoles |
| (E) |
Golgi bodies |
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| 3. |
What
is the function of the Golgi apparatus? |
| (A) |
It controls the cell’s activities and stores its DNA. |
| (B) |
It is the site of protein synthesis. |
| (C) |
It synthesizes lipids and transports synthesized proteins. |
| (D) |
It sorts and packages proteins made in the endoplasmic
reticulum. |
| (E) |
It provides structure to the prokaryotic cell. |
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| 4. |
Proteins
manufactured in the endoplasmic reticulum are secreted from the
cell by which of the following processes? |
| (A) |
Diffusion |
| (B) |
Osmosis |
| (C) |
Pinocytosis |
| (D) |
Exocytosis |
| (E) |
Passive transport |
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| 5. |
Why
is the “rough” endoplasmic reticulum rough? |
| (A) |
It is studded with ribosomes that form a bumpy coat. |
| (B) |
It functions in lipid synthesis. |
| (C) |
It contains cellulose, which gives the membrane rigidity
and structure. |
| (D) |
It lacks the ribosomes characteristic of the cytosol. |
| (E) |
It engages in lipid synthesis, which gives it a rough texture. |
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| 6. |
Which
of the following functions is performed by the lysosome? |
| (A) |
Digestion of intracellular debris |
| (B) |
Production of energy through photosynthesis |
| (C) |
Regulation of transport |
| (D) |
Storage of nutrients |
| (E) |
Lipid synthesis |
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| 7. |
What
two classes of molecules make up the phospholipid bilayer? |
| (A) |
Sugars and phosphoproteins |
| (B) |
Proteins and phospholipids |
| (C) |
Phosphoproteins and lipids |
| (D) |
DNA and carbohydrates |
| (E) |
PhosphoDNA and lipids |
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| 8. |
What
is the name of the natural process by which molecules flow from
an area of higher concentration to an area of lower concentration? |
| (A) |
Diffusion |
| (B) |
Pinocytosis |
| (C) |
Endocytosis |
| (D) |
Respiration |
| (E) |
Exocytosis |
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| 9. |
Which
of the following is not a property of the cell membrane? |
| (A) |
Fluidity |
| (B) |
Permeability to nonpolar compounds |
| (C) |
Permeability to water and gases |
| (D) |
Rigidity |
| (E) |
Impermeability to large polar compounds |
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| 10. |
A
cell is placed in a bath of water that has a much higher salt concentration
than the concentration inside the cell. What happens? |
| (A) |
The cell will fill with water. |
| (B) |
Water will rush out of the cell. |
| (C) |
The distribution of water will not change. |
| (D) |
Salt will move from the cell to the exterior. |
| (E) |
The cell will clearly burst. |
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