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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In a
chloroplast, the stacks of membranous sacs are called _____. a. | grana | c. | thylakoid
membrane | b. | stroma | d. | plastids | | | | |
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2.
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In a
typical animal cell, the cytoplasm occupies _____. a. | one quarter of
the volume | c. | a little more
than half the volume | b. | almost all the volume | d. | a small part of the volume | | | | |
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3.
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Which
of the following is NOT true of membranes? a. | Folded membranes do not form compartments in the
cell. | b. | Folded membranes increase surface area for
efficiency. | c. | Ribosomes are sometimes attached to folded
membranes. | d. | Endoplasmic reticulum is made up of folded
membranes. | | |
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4.
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Cell
walls of multicellular plants are composed mainly of _____. a. | pectin | c. | vacuoles | b. | chitin | d. | cellulose | | | | |
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5.
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One
advantage of electron microscopes over light microscopes is their _____. a. | higher
magnification | c. | size | b. | two-dimensional image | d. | use of live specimens | | | | |
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6.
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A
major difference between a compound light microscope and a transmission microscope is that a light
microscope image _____. a. | uses magnet lenses | b. | requires thin
slices | c. | allows you to see fine detail of
organelles | d. | can be made from living, unstained
materials | | |
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7.
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When
a cell is ready to reproduce, its DNA is packed into _____. a. | chromatin | c. | chromosomes | b. | nucleoli | d. | nucleoids | | | | |
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8.
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Folded membranes are an advantage to a cell because _____. a. | the membranes
provide a large surface area | b. | the membranes form interconnected
compartments | c. | cell processes can be more efficient | d. | all of
these | | |
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9.
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Each
of the following is a main idea of the cell theory except _____. a. | the cell is the
basic unit of organization of organisms | b. | all organisms are composed of cells | c. | all cells come
from preexisting cells | d. | all cells are similar in structure and
function | | |
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10.
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Which
of the following structures is the most complex? a. | organ system | c. | organ | b. | tissue | d. | cell | | | | |
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