Photosynthesis Question Preview (ID: 1094)


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Organisms, such as plants, that make their own food are called
a) thylakoids.
b) pigments
c) autotrophs
d) heterotrophs

Energy is released from ATP when
a) a phosphate group is added.
b) adenine bonds to ribose.
c) ATP is exposed to sunlight
d) a phosphate group is removed

Photosynthesis uses sunlight to convert water and carbon dioxide into
a) oxygen
b) High energy sugars and starches
c) ATP and oxygen
d) oxygen and high energy sugars and starches

In the overall equation for photosynthesis, six molecules of carbon dioxide result in six molecules of
a) glucose
b) water
c) ADP
d) ATP

Plants gather the sun’s energy with light-absorbing molecules called
a) pigments
b) thylakoids
c) chloroplasts
d) glucose

Most plants appear green because chlorophyll
a) does not absorb green light
b) reflects violet light
c) absorbs green light
d) none of the above

The stroma is the region outside the
a) chloroplasts
b) thylakoids
c) plants cells
d) plant walls

Where do the light-dependent reactions take place?
a) in the stroma
b) in the mitochondria
c) within the thylakoid membranes
d) only in chlorophyll molecules

Which step is the beginning of photosynthesis?
a) Pigments in photosystem I absorb light
b) Pigments in photosystem II absorb light.
c) High-energy electrons move through the electron transport chain.
d) ATP synthase allows H+ ions to pass through the thylakoid membrane.

The Calvin cycle is another name for
a) light-independent reactions.
b) light-dependent reactions
c) photosynthesis.
d) all of the above

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