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. |
All
cells use ATP as an immediate source of energy. ____________________
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2. |
Heterotrophs convert the nutrients they absorb into glucose
and, through cellular respiration, transfer the energy in glucose to
ATP. ____________________
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3. |
Chlorophyll molecules are embedded within mitochondrial
membranes. ____________________
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4. |
Sun
plants photosynthesize best at high light intensities. ____________________
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5. |
Anaerobic cellular respiration does not use oxygen, and produces
large amounts of ATP. ____________________
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6. |
In
anaerobic respiration, pyruvate molecules formed in glycolysis into
the matrix of a mitochondrion. ____________________
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7. |
Mitochondrial DNA allows mitochondria to reproduce. ____________________
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8. |
In
lactate fermentation, an enzyme called pyruvate decarboxylase
removes a carbon dioxide molecule from pyruvate. ____________________
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9. |
In
winemaking, the grape juice bubbles as yeast cells release carbon
dioxide gas and ethanol during fermentation. ____________________
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10. |
During strenuous exercise, lactate fermentation occurs in muscle
cells because glucose is being broken down faster than oxygen
can be delivered. ____________________
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11. |
Animals carry out photosynthesis and cellular respiration
because they contain chloroplasts and mitochondria. ____________________
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12. |
Animals use carbon dioxide for photosynthesis, and plants
give off carbon dioxide as a waste product of cellular respiration.
____________________
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Multiple Choice
Identify
the letter of the choice that best completes the statement or answers
the question.
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13. |
Photosynthesis
a. |
occurs in green plants only |
c. |
converts light into glucose |
b. |
occurs
in autotrophs only |
d. |
produces
carbon dioxide |
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14. |
Heterotrophs
a. |
obtain energy by carrying out photosynthesis |
b. |
contain chloroplasts |
c. |
obtain
energy by ingesting other organisms |
d. |
absorb carbon dioxide from the atmosphere |
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15. |
The
reactions of photosynthesis
a. |
occur in the cytoplasm of plant cells |
b. |
begin
when light strikes cholesterol molecules in the cell membrane |
c. |
begin
when light strikes chlorophyll molecules in thylakoid membranes |
d. |
begin
when light strikes the cristae of mitochondria |
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16. |
Accessory pigments
a. |
protect skin from harmful ultraviolet rays |
b. |
begin
the process of photosynthesis |
c. |
include chlorophyll |
d. |
are
responsible for the colours of autumn leaves |
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17. |
Aerobic cellular respiration
a. |
produces glucose |
c. |
occurs in chloroplasts |
b. |
occurs
in mitochondria |
d. |
produces
oxygen |
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18. |
Glycolysis
a. |
breaks glucose into two molecules of pyruvate |
b. |
produces 34 molecules of ATP |
c. |
occurs
in mitochondria |
d. |
produces carbon dioxide |
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19. |
Mitochondria
a. |
carry out glycolysis |
b. |
contain
their own DNA |
c. |
are needed only by plant cells |
d. |
are
not found in the cells of large animals such as humans |
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20. |
Ethanol fermentation
a. |
occurs in human muscle cells |
c. |
produces carbon dioxide gas |
b. |
produces
lactate and ethanol |
d. |
occurs
in mitochondria |
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Completion
Complete each sentence
or statement.
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21. |
The
production of ____________________ occurs through a process called photosynthesis.
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22. |
The
____________________ are the sites of photosynthesis in green plants.
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23. |
____________________ are stacks of thylakoids.
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24. |
Photosynthesis begins when ____________________ absorbs light energy.
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25. |
The
movement of carbon dioxide, water, and oxygen into and out of a leaf
is controlled by ____________________ cells.
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26. |
The
____________________ of mitochondria may contain free-floating enzymes
used in cellular respiration.
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27. |
Ethanol fermentation occurs in the ____________________ of the
cell.
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Short Answer
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28. |
Complete the concept map below, showing the relationships between
cellular respiration and photosynthesis.
A
________________________________ |
C
________________________________ |
B
________________________________ |
D
________________________________ |
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