Part A Modified True/False
Indicate whether the sentence or statement is true or
false. If false, change the identified word or phrase to make the sentence or statement
true.
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1.
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Both animal cells and plant cells contain vacuoles.
____________________
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2.
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The low concentration of oxygen in the cells causes diffusion of oxygen out
of the cells. ____________________
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3.
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Diffusion is the movement of substances from an area of high
concentration to an area of low concentration. ____________________
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4.
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Osmosis is the movement of water across a membrane from an area of high
concentration to an area of low concentration. ____________________
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Part B Completion
Complete each
sentence or statement.
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5.
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A structure that carries materials through the cytoplasm is called
______________________________ .
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6.
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The ____________________ power magnification is best for scanning objects under
the microscope.
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7.
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Many of the chemical activities in the cell take place in the
____________________.
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8.
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Ribosomes are the sites of ____________________ production.
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Part C Multiple Choice
Identify
the letter of the choice that best completes the statement or answers the question.
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9.
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Animals get their energy by
a. | producing it | c. | photosynthesis | b. | eating other organisms | d. | dividing |
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10.
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Which of the following is part of the cell theory?
a. | All cells reproduce. | c. | All cells get rid of waste. | b. | All cells
breathe. | d. | All cells arise
from other cells. |
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11.
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What do eukaryotic cells contain?
a. | cell membrane | c. | chromosome | b. | vacuole | d. | nucleus |
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12.
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An example of a prokaryotic cell is
a. | a plant cell | c. | bacteria | b. | an animal cell | d. | any cell |
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13.
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Which microscope produces digital three-dimensional images?
a. | light microscope | c. | scanning electron microscope | b. | transmission
electron microscope | d. | single
lens microscope |
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Figure 1.1
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14.
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In Figure 1.1, which structure produces proteins?
a. | ribosomes | c. | nucleus | b. | Golgi apparatus | d. | mitochondrion |
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15.
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In Figure 1.1, which structure supplies the cell’s energy?
a. | ribosomes | c. | nucleus | b. | Golgi apparatus | d. | mitochondrion |
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16.
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The movement of water through a selectively permeable membrane is called
a. | diffusion | c. | mitosis | b. | osmosis | d. | meiosis |
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17.
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Which of the following is used to focus the beam of electrons in a transmission
electron microscope?
a. | fine adjustment knob | c. | magnets | b. | coarse adjustment knob | d. | ocular |
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Part D Short Answer
Use sentences to answer the following
questions.
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18.
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Identify the characteristics of living things for each of the following
examples:
a. Plant roots grow downwards.
b. Human kidneys produce urine.
c. Geese lay eggs
that hatch into goslings.
d. The lifespan of humans is around 80 years.
e. We eat
everyday.
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19.
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What is the total magnification of a microscope with an eyepiece with 15X
magnification and an ocular of 40X?
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20.
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List the main differences between plant and animal cells.
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21.
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What are the main advantages and disadvantages of a transmitting electron
microscope and a scanning electron microscope?
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22.
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Explain how osmosis and turgor pressure are related.
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