Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
cell theory applies to a. | bacteria. | c. | multicellular organisms. | b. | plants and
animals. | d. | all of the
above | | | | |
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2.
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Which
of the following organisms are prokaryotes? a. | plants | c. | bacteria | b. | animals | d. | all of the
above | | | | |
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3.
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Which
of the following is NOT found in the nucleus? a. | cytoplasm | c. | chromatin | b. | nucleolus | d. | DNA | | | | |
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4.
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Which
of the following statements explains why the nucleus is important to cells? a. | Only eukaryotes
have nuclei. | b. | Only prokaryotes have nuclei. | c. | The nucleus
contains coded instructions for making proteins. | d. | The nucleus is
surrounded by a nuclear envelope. | | |
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5.
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Which
of the following structures is found in the cytoplasm? a. | nucleolus | c. | chromatin | b. | ribosome | d. | cell wall | | | | |
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6.
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Which
organelle would you expect to find in plant cells but not animal cells? a. | mitochondrion | c. | chloroplast | b. | ribosome | d. | smooth endoplasmic reticulum | | | | |
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7.
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Diffusion occurs because a. | molecules constantly move and collide with each
other. | b. | the concentration of a solution is never the same throughout a
solution. | c. | the concentration of a solution is always the same throughout a
solution. | d. | molecules never move or collide with each
other. | | |
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8.
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When
the concentration of molecules on both sides of a membrane is the same, the molecules
will a. | move across the
membrane to the outside of the cell. | b. | stop moving across the membrane. | c. | move across the
membrane in both directions. | d. | move across the membrane to the inside of the
cell. | | |
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9.
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Which
means of particle transport requires input of energy from the cell? a. | diffusion | c. | facilitated
diffusion | b. | osmosis | d. | active transport | | | | |
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10.
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The
cells of multicellular organisms are a. | smaller than those of unicellular
organisms. | b. | simpler than those of unicellular
organisms. | c. | specialized to perform different
tasks. | d. | not dependent on one another. | | |
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11.
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Which
of the following is an example of an organ? a. | heart | c. | digestive system | b. | epithelial
tissue | d. | nerve
cell | | | | |
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12.
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A
group of similar cells that perform a particular function is called a(an) a. | organ. | c. | tissue. | b. | organ system. | d. | division of labor. | | | | |
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13.
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An
organ system is a group of organs that a. | are made up of similar cells. | b. | are made up of
similar tissues. | c. | work together to perform a specific
function. | d. | work together to perform all the functions in a multicellular
organism. | | |
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14.
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Which
of the following equations is an example of cellular respiration? a. | sunlight
(energy) + CO2 + H2O ® C6H12O6 +
O2 | b. | C6H12O6 + H2O
® CO2
+ H2O + ATP (energy) | | |
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15.
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The
variable that the researcher measures or the one that is impacted by the manipulated variable is the
___ variable. a. | independent | c. | extraneous | b. | dependent | d. | erroneous | | | | |
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16.
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If
after performing an experiment and finding that the observations prove the hypothesis to be false,
then the experiment is a. | valid | c. | reliable | b. | not
valid | d. | not
reliable | | | | |
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17.
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If
several researchers conduct the same experiment and find that their results differ, then the
experiment is a. | valid | c. | reliable | b. | not valid | d. | not reliable | | | | |
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18.
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Photosynthesis provides consumers with |