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
invention of the microscope made it possible for people to discover and learn about a. | plants. | b. | skin. | c. | animals. | d. | cells. | | |
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2.
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Which
of these scientists was the first person to observe what are now called bacteria? a. | Matthias
Schleiden | b. | Rudolf Virchow | c. | Robert
Hooke | d. | Anton von Leeuwenhoek | | |
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3.
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Which
of the following statements is part of the cell theory? a. | Only plants are
composed of cells. | b. | All cells are produced from other
cells. | c. | Cells can be produced from nonliving
matter. | d. | Cells are one of several basic units of structure and function
in living things. | | |
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4.
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Which
of the following statements is NOT part of the cell theory? a. | Cells are the
basic unit of structure and function in living things. | b. | All cells are
produced from other cells. | c. | Only animals are composed of cells. | d. | All living
things are composed of cells. | | |
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5.
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How
does a microscope lens work? a. | Each concave lens bends light to make the object appear
larger. | b. | Each convex lens bends light to make the object appear
larger. | c. | Each convex lens bends light to make the object become
larger. | d. | The reflection of each concave lens makes the object appear
larger. | | |
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6.
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What
does the term resolution refer to? a. | how sharp an image is | b. | how big an image
can be | c. | how many lenses a microscope uses | d. | how much light
is needed to see an image | | |
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7.
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What
is the function of a cell wall? a. | to protect and support the cell | b. | to perform
different functions in each cell | c. | to prevent water from passing through
it | d. | to prevent
oxygen from entering the cell | | |
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8.
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What
is the function of a cell membrane? a. | to protect and support the cell | b. | to perform
different functions in each cell | c. | to control what enters and leaves the
cell | d. | to form a hard
outer covering for the cell | | |
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9.
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Which
organelles produce most of the energy needed by a cell? a. | mitochondria | b. | chloroplasts | c. | ribosomes | d. | Golgi bodies | | |
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10.
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Which
organelles produce proteins in the cell? a. | Golgi bodies | b. | chloroplasts | c. | ribosomes | d. | vacuoles | | |
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11.
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Which
organelles release chemicals that break down large food particles into smaller ones? a. | endoplasmic
reticulum | b. | Golgi bodies | c. | lysosomes | d. | vacuoles | | |
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12.
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Cells
in many-celled organisms a. | all look the same. | b. | all have the
same structure. | c. | are often quite different from one
another. | d. | are the same size in every part of the
organism. | | |
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13.
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Which
term refers to the movement of molecules from an area of higher concentration to an area of lower
concentration? a. | collision | b. | diffusion | c. | active
transport | d. | concentration | | |
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14.
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Which
term refers to the movement of water molecules through a selectively permeable
membrane? a. | osmosis | b. | engulfing | c. | active
transport | d. | passive transport | | |
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15.
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Which
term refers to the movement of materials through a cell membrane without using
energy? a. | concentration | b. | collision | c. | active
transport | d. | passive transport | | |
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16.
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Which
term refers to the movement of materials through a cell membrane when energy is
required? a. | osmosis | b. | diffusion | c. | active
transport | d. | passive transport | | |
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17.
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One
reason that cells are small is because they a. | lack food. | b. | contain
water. | c. | use energy. | d. | must remove
wastes. | | |
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18.
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The
stage of respiration that releases most of the energy in glucose occurs in the a. | nucleus. | b. | chloroplast. | c. | cytoplasm. | d. | mitochondria. | | |
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Short Answer
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19.
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Name
two structures that are not found in the cell shown here but are found in plant cells.
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20.
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Identify structure A and describe its function.
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21.
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Identify the structures labeled B and describe their function.
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22.
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Identify structure C and describe its function.
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23.
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Identify the large round structure labeled D and describe its function.
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24.
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Explain what would happen if some of the red blood cells were placed in beaker
A.
(Hint A red blood cell contains cytoplasm which contains water. Is the water in the
cell at a higher or lower concentration ?)
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25.
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Explain what would happen if some of the red blood cells were placed in beaker
B.
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26.
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Plasma is the liquid part of blood in which blood cells move. Explain what would
happen if some of the red blood cells were placed in beaker C.
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27.
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Why
is diffusion important for all living cells ?
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