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Photosynthesis
Test Description: Process and structures
Instructions: Answer all questions to get your test result.
1) Organisms, such as plants, that make their own food are called
A
pigments
B
thylakoids.
C
heterotrophs
D
autotrophs
2) Energy is released from ATP when
A
a phosphate group is removed
B
adenine bonds to ribose.
C
a phosphate group is added.
D
ATP is exposed to sunlight
3) Photosynthesis uses sunlight to convert water and carbon dioxide into
A
ATP and oxygen
B
High energy sugars and starches
C
oxygen
D
oxygen and high energy sugars and starches
4) In the overall equation for photosynthesis, six molecules of carbon dioxide result in six molecules of
A
water
B
ATP
C
glucose
D
ADP
5) Plants gather the sun’s energy with light-absorbing molecules called
A
thylakoids
B
chloroplasts
C
pigments
D
glucose
6) Most plants appear green because chlorophyll
A
does not absorb green light
B
absorbs green light
C
none of the above
D
reflects violet light
7) The stroma is the region outside the
A
plant walls
B
plants cells
C
thylakoids
D
chloroplasts
8) Where do the light-dependent reactions take place?
A
in the stroma
B
in the mitochondria
C
only in chlorophyll molecules
D
within the thylakoid membranes
9) Which step is the beginning of photosynthesis?
A
High-energy electrons move through the electron transport chain.
B
Pigments in photosystem I absorb light
C
Pigments in photosystem II absorb light.
D
ATP synthase allows H+ ions to pass through the thylakoid membrane.
10) The Calvin cycle is another name for
A
photosynthesis.
B
light-independent reactions.
C
all of the above
D
light-dependent reactions
*select an answer for all questions
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