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| 1 | |
A feature that distinguishes plant cells from animal cells is |
| | A) | plant cells have a cell membrane and animal cells do not. |
| | B) | animal cells perform cellular respiration and plant cells do not. |
| | C) | animal cells do not have a cell wall and plant cells do. |
| | D) | plant cells do not have chloroplasts and animal cells do. |
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| 2 | |
Animal cells use their chloroplasts to |
| | A) | capture the energy of sunlight to make sugars. |
| | B) | This is a trick question. Only fungi and some protists contain chloroplasts. |
| | C) | This is a trick question. Animal cells do not contain chloroplasts. |
| | D) | This is a trick question. Only bacteria contain chloroplasts. |
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| 3 | |
The cell structure that separates the internal environment of the cell from its external environment is |
| | A) | the cell wall. |
| | B) | the cell membrane. |
| | C) | the nucleus. |
| | D) | the cytoplasm. |
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| 4 | |
The cell membrane is selectively permeable. This means that |
| | A) | some molecules are allowed pass through it, but other molecules are not. |
| | B) | certain substances are allowed to pass through it without assistance. |
| | C) | most substances are allowed to pass through it with the aid of various cell structures. |
| | D) | it will burst if the concentration of solutes outside the cell is greater than the concentration of solutes inside the cell. |
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| 5 | |
The difference in concentration of a substance between two areas is called |
| | A) | a concentration equilibrium. |
| | B) | diffusion. |
| | C) | osmosis. |
| | D) | a concentration gradient. |
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| 6 | |
Osmosis is a passive process (one that does not require energy from a cells) because |
| | A) | the cell membrane is impermeable to water molecules, so it cannot prevent the movement of water. |
| | B) | the cell membrane is permeable to water molecules, so it cannot prevent the movement of water. |
| | C) | it moves against its concentration gradient. |
| | D) | it is the same as diffusion. |
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| 7 | |
Channel proteins and carrier proteins are important to the movement of substances in cells because |
| | A) | they assist in the diffusion of certain substances into and out of cells. |
| | B) | they are required for endocytosis. |
| | C) | they permit the cell to perform photosynthesis. |
| | D) | they help to move certain substances against their concentration gradient. |
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| 8 | |
Diffusion does not require energy from the cell because |
| | A) | it moves substances against their concentration gradient. |
| | B) | it occurs in both the presence and the absence of sunlight. |
| | C) | it is a spontaneous process in which molecules move down their concentration gradient. |
| | D) | molecules of ATP are synthesized outside of the cell. |
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| 9 | |
The cells of these organisms are all eukaryotic. |
| | A) | bacteria, plants, and fungi |
| | B) | plants, animals, and archaea |
| | C) | plants, animals, and fungi |
| | D) | plants, animals, and bacteria |
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| 10 | |
The organelle most closely associated with cellular respiration is |
| | A) | the nucleus. |
| | B) | the cell membrane. |
| | C) | the chloroplast. |
| | D) | the mitochondrion. |
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