Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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When two or more elements combine, they form a(n)
a. | lipid. | b. | atom. | c. | element. | d. | compound. |
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2.
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Organic compounds come from
a. | water. | b. | air | c. | things that are or
were alive | d. | rocks and stones |
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3.
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The organelles of a cell work together to assemble long chains of amino
acids called
a. | carbohydrates. | b. | proteins. | c. | nucleic
acids. | d. | lipids. |
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4.
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Simple sugar molecules can combine with one another to form larger
molecules called
a. | proteins. | b. | complex carbohydrates such as
starches. | c. | enzymes. | d. | lipids. |
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5.
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When soaked in salt water, the fresh water inside potato cells will
a. | leave the cell because of osmosis. | b. | increase volume because of
osmosis. | c. | remain unchanged in the cell. | d. | become salt
water. |
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6.
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Which term refers to the movement of water from an area of low mineral
concentration to an area of higher mineral concentration.
a. | gravity | b. | erosion | c. | osmosis | d. | refraction |
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7.
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Elements are related to compounds in that
a. | neither has atoms. | b. | elements combine to form
componds. | c. | both are found only in living organisms. | d. | elements are made up
of compounds. |
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8.
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How would salt water affect the chloroplasts in plant cells
a. | they would bunch up towards the center because the cell is losing
water. | b. | no affect | c. | they would spread out more evenly because the
cell is gaining water. |
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9.
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The various specialized cells in living things
a. | are identical. | b. | carry out the exact same
functions. | c. | have different structure suited to carry out special functions. | d. | are not
different |
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10.
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A cell, tissue, and organ are all related to an organ system in
that each
a. | is part of a unicellular organism. | b. | is made of many organ
systems. | c. | has the same function. | d. | is a part of an organ system of a multicellular
organism. |
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11.
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In multicellular organisms, cells are organized into
a. | tissues, which make up organs, which make up organ systems. | b. | organs, which make
up tissues, which make up organ systems. | c. | organ systems, which make up
tissues. | d. | organs, which make up organ systems. |
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12.
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The smallest particle that an element can be broken down to is
a(n)
a. | atom | c. | compound | b. | molecule |
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13.
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Water or H2O is a(n)
a. | atom | c. | compound | b. | element |
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14.
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Organic componds that form fats, oils and waxes are
a. | carbohydrates | c. | lipids | b. | proteins | d. | nucleic acids |
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15.
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Organic compounds that contain the instructions for life are
a. | carbohydrates | c. | lipids | b. | proteins | d. | nucleic acids |
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16.
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DNA and RNA are different in that
a. | DNA contains genes and RNA directs the cell on how to make its
proteins | c. | RNA has a longer name than DNA | b. | they are no
different |
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17.
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Cells break simple carbohydrates down to CO2 because
a. | the body needs CO2 | c. | the body needs
oxygen | b. | the body needs energy |
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