True/False
Indicate whether the
statement is true or false.
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1
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An organism that makes its own food is an autotroph.
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2
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During respiration, most energy is released in the mitochondria.
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3
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An energy-releasing process that does not require oxygen is replication.
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4
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The stage of the cell cycle when DNA replication occurs is called
telophase.
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5
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Uncontrolled cell division is a characteristic of cancer.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6
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The organelle in which photosynthesis takes
place is the
A | mitochondrion. | C | chlorophyll.
| B | chloroplast.
| D | nucleus. |
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7
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What process produces carbon dioxide?
A | photosynthesis
| C | mutation
| B | replication
| D | respiration |
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8
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The process in which a cell makes an exact copy of its DNA is called
A | fermentation.
| C | replication.
| B | respiration.
| D | reproduction. |
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9
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What happens during cytokinesis?
A | A spindle forms. | C | The cytoplasm divides | B | Chloroplasts release
energy. | D | Chromosomes divide.
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10
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A mass of cancer cells is called a
A | chromosome.
| C | mutation.
| B | tumor.
| D | mitochondrion. |
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11
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A researcher places part of a plant in a beaker of water. She observes that the
plant leaves release bubbles of gas when she shines a light on the beaker. The leaves do not release
gas when the beaker is placed in the dark. Based on her observations, which of the following is the
most logical inference?
A | The plant is undergoing cellular respiration. | C | Light is breaking down molecules of
air. | B | The plant is breathing. | D | The plant is undergoing photosynthesis. |
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12
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A scientist performed an experiment to determine the effect of temperature on
the length of the cell cycle. On the basis of the data in the table below, how long would you expect
the cell cycle to be at 5°C ?  A | less than 13.3 hours | C | between 29.8 and 54.6 hours | B | more than 54.6
hours | D | about 20
hours |
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13
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Which of the following statements is true?
A | Plants cannot respire because they have no mitochondria.
| C | Animals can not
photosynthesize.
| B | Photosynthesis produces
energy.
| D | Only plants
photosynthesize and only animals respire. |
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14
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Which of the following nitrogen base pairs can be found in
DNA?
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Matching
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A | cell cycle | J | chemotherapy | B | interphase | K | respiration | C | replication | L | fermentation | D | mitosis | M | photosynthesis | E | chromosome | N | autotroph | F | cytokinesis | O | heterotroph | G | cancer | P | pigment | H | mutation | Q | chlorophyll | I | tumor | R | stomata |
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15
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The regular sequence of growth and division that cells undergo.
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16
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The stage of the cell cycle that takes place before cell division
occurs.
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17
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The process by which a cell makes a copy of the DNA in its nucleus.
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18
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The stage of the cell cycle during which the cell’s nucleus divides into
two new nuclei and one copy of the DNA is distributed into each daughter cell.
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19
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A doubled rod of condensed chromatin; contains DNA that carries genetic
information.
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20
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The final stage of the cell cycle, in which the cell’s cytoplasm divides,
distributing the organelles into each of the two new cells.
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21
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A disease in which some body cells grow and divide uncontrollably, damaging the
parts of the body around them.
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22
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A change in a gene or chromosome.
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23
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A mass of abnormal cells that develops when cancerous cells divide and grow
uncontrollably.
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24
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The use of drugs to treat diseases such as cancer.
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25
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The process by which cells break down simple food molecules to release the
energy they contain.
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26
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The process by which cells break down molecules to release energy without using
oxygen.
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27
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The process by which plants and some other organisms capture the energy in
sunlight and use it to make food.
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28
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An organism that makes its own food.
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29
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An organism that cannot make its own food.
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30
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A colored chemical compound that absorbs light.
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31
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A green pigment found in the chloroplasts of plants, algae, and some
bacteria.
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32
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Small openings on the underside of a leaf through which oxygen and carbon
dioxide can move.
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