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1 | |
The growth of an organism is a |
| | A) | responsive process. |
| | B) | generative process. |
| | C) | metabolic process. |
| | D) | control process. |
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2 | |
A paramecium ingesting a bacterial cell is an example of which step in metabolism? |
| | A) | nutrient uptake |
| | B) | waste elimination |
| | C) | nutrient processing |
| | D) | adaptive response |
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3 | |
The evolution of a population of organisms is a |
| | A) | responsive process. |
| | B) | generative process. |
| | C) | metabolic process. |
| | D) | control process. |
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4 | |
What is the basic structural unit of which all living things are composed? |
| | A) | organs |
| | B) | cells |
| | C) | organisms |
| | D) | tissues |
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5 | |
Prokaryotic cells lack |
| | A) | cell membranes. |
| | B) | cell walls. |
| | C) | nucleus. |
| | D) | DNA. |
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6 | |
Proteins with attached carbohydrates or fats on the cell membrane function in |
| | A) | the identification of cells. |
| | B) | the metabolism of sugars. |
| | C) | structural support for the cell. |
| | D) | transporting materials into and out of the cell. |
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7 | |
Chitin is the main constituent of the cell |
| | A) | membrane of fungi. |
| | B) | membrane of plants. |
| | C) | wall of fungi. |
| | D) | wall of plants. |
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8 | |
In diffusion, molecules move from areas of _____ concentration to areas of _____ concentration. |
| | A) | higher, higher |
| | B) | higher, lower |
| | C) | lower, higher |
| | D) | lower, lower |
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9 | |
The movement of oxygen into cells from the bloodstream is accomplished through |
| | A) | osmosis. |
| | B) | active transport. |
| | C) | diffusion. |
| | D) | phagocytosis. |
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10 | |
Cells of fresh water organisms are _____ compared to the surrounding water. |
| | A) | isotonic |
| | B) | hypertonic |
| | C) | hypotonic |
| | D) | ginandtonic |
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11 | |
Increasing the rate of diffusion through the use of specific carrier proteins is termed |
| | A) | active transport. |
| | B) | phagocytosis. |
| | C) | osmosis. |
| | D) | facillitated diffusion. |
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12 | |
Individual cells are limited in their maximum size because their _____ increases faster than their _____ as the cell grows larger. |
| | A) | diffusion, volume |
| | B) | surface area, volume |
| | C) | diffusion, surface area |
| | D) | volume, surface area |
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13 | |
The organelle involved in the transport of materials within the cell is the |
| | A) | Golgi apparatus. |
| | B) | endoplasmic reticulum. |
| | C) | nucleus. |
| | D) | cell membrane. |
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14 | |
Contractile vacuoles are necessary for maintaining water balance in single-celled _____ organisms. |
| | A) | eukaryotic |
| | B) | prokaryotic |
| | C) | salt water |
| | D) | fresh water |
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15 | |
The organelle that serves as the "power plant" for the cell is the |
| | A) | endoplasmic reticulum. |
| | B) | lysosome. |
| | C) | mitochondrion. |
| | D) | golgi apparatus. |
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16 | |
Which of the following are double-membrane organelles? |
| | A) | mitochondria |
| | B) | chloroplast |
| | C) | ribosome |
| | D) | both a and b |
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17 | |
Antibiotics like streptomycin affect the function of_____ in bacteria. |
| | A) | protein synthesis |
| | B) | photosynthesis |
| | C) | energy production |
| | D) | cellular transport |
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18 | |
Which of the following is the correct order for the stages of mitosis? |
| | A) | telophase, prophase, anaphase, metaphase |
| | B) | anaphase, telophase, prophase, metaphase |
| | C) | prophase, metaphase, anaphase, telophase |
| | D) | prophase, anaphase, telophase, metaphase |
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19 | |
During which stage is DNA replicated? |
| | A) | metaphase |
| | B) | anaphase |
| | C) | prophase |
| | D) | interphase |
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20 | |
During which stage are the chromatids pulled to opposite poles? |
| | A) | metaphase |
| | B) | anaphase |
| | C) | prophase |
| | D) | interphase |
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21 | |
During which stage do the chromosomes align themselves at the cell's equatorial plane? |
| | A) | metaphase |
| | B) | anaphase |
| | C) | prophase |
| | D) | interphase |
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22 | |
During which stage does the nuclear membrane disappear? |
| | A) | metaphase |
| | B) | anaphase |
| | C) | prophase |
| | D) | telophase |
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23 | |
During which stage does the nuclear membrane reappear? |
| | A) | metaphase |
| | B) | anaphase |
| | C) | prophase |
| | D) | telophase |
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24 | |
Osmosis is the diffusion of ____ across a selectively permeable membrane. |
| | A) | proteins |
| | B) | sugars |
| | C) | water |
| | D) | vacuoles |
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25 | |
Solution A contains 20% sugar and 80% water. Solution B contains 30% sugar and 70% water. The two solutions are separated by a semi-permeable membrane. Which of the following is true? |
| | A) | solution A is hypotonic to solution B |
| | B) | solution A is hypertonic to solution B |
| | C) | water will flow from solution B to solution A |
| | D) | the solutions are isotonic |
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