AP Biology Conservation Ecology

Photosynthesis goal is to

• convert light energy into glucose energy

• use light energy to make oxygen gas

• convert sugar energy into ATP

• convert sugar energy into oxygen gas

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NGSS.HS-LS1-5

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

• NADPH

• ATP

• Water

• Oxygen gas

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NGSS.HS-LS1-5

The NADP+ is

• oxidized during the light reaction

• reduced during the light reaction

• oxidized during the Calvin cycle

• reduced during the Calvin cycle

Photosystems are made of

• chloroplasts

• chromosomes

• chlorophyll

• cytoplasm

What is FALSE about the calvin cycle

• uses the light reactions products

• produces a three carbon sugar (G3P)

• produces carbon dioxide

• produces NADP+

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NGSS.HS-LS2-5

Which plant would have the most oxygen produced in 1 hour?

• plant given red light only

• plant given blue light only

• plant given white light

• plant given green light only

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NGSS.HS-LS1-5

How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?

• 1

• 3

• 6

• 12

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NGSS.HS-LS2-5

The H+ concentration gradient is used to 

• make NADPH

• split a water molecule

• generate ATP

• form water

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

ATP is made during the light reaction using all of the following EXCEPT

• proton pump

• hydrogen ion gradient

• electron energy from photosystem II

• NADPH donating electrons

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NGSS.HS-LS1-5

Why does increasing producers increase the populations of all trophic levels?

• Producers increase the size of a habitat

• Producers help keep predator populations in check

• With more energy available the carrying capacity increases

• Producers do not have a large impact on population sizes

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NGSS.MS-LS2-1

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