Photosynthesis Question Preview (ID: 33556)


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

Energy is released from ATP when
a) a phosphate is removed
b) adenine bonds to ribose.
c) ATP converts to ADP
d)

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably
a) oxygen
b) CO2
c) Sugar
d)

Which of the following are used in the overall reactions for photosynthesis?
a) carbon dioxide
b) water
c) light
d) All are correct

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

The stroma is the space that surrounds
a) thylakoids
b) membrane
c) nucleus
d)

Where in the chloroplast is chlorophyll found?
a) in the thylakoid
b) in the stroma
c) in the cell membrane
d) in the air

Where do the light-dependent reactions take place?
a) in the thylakoid membranes
b) in the stroma
c) outside the chloroplasts
d)

What are the products of the light-dependent reactions?
a) oxygen
b) NADPH
c) ATP
d) All are correct

How does the inside of the thylakoid membrane become positively charged during the light-dependent reactions?
a) H+ ions are released as water splits and are pumped across the membrane during electron transfer.
b) ATP synthase allows H+ ions to pass through the membrane while it spins to produce ATP molecules.
c) ATP synthase produces ATP from ADP.
d)

The Calvin cycle takes place in the
a) stroma
b) photosynthesis
c) roots
d) thylakoid

What is a product of the Calvin cycle?
a) oxygen gas
b) sugar
c) prokaryote cell
d)

Which of the following affects the rate of photosynthesis?
a) Water
b) Temperature
c) Light intensity
d) all are correct

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