PHOTOSYNTHESIS AND RESPIRATION QUIZ

What is the maximum absorption wavelength for photosystem I in green plants?

700 nm

550 nm

750 nm

600 nm

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The manufacture of ATP in both photosynthesis and respiration is made possible by

the action of ATP synthase

All of these

the existence of a proton gradient across specific membranes

energy from the movement of electrons

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Hydrogen (electron) acceptor in the light reactions is

FADH

NAD+

ADP

NADP+

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Which one of the following is a product of both cyclic and noncyclic photophosphorylation?

Carbohydrate

ATP

O2

NADPH

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The end products of noncyclic photophosphorylation are

carbon dioxide, ATP and water

carbon dioxide, PGAL (phosphoglyceraldehyde), and H2

water, ADP and NADP+

O2, ATP and NADPH

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The rate of photorespiration in most plants increases at.higher temperatures. Some plants have evolved a somewhat round-about system to deal with this problem. This series of reactions is called

Calvin cycle

ETS (electron transfer system in light reactions

Photosystem II

C4 pathway

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The vast majority of the molecules that act as energy carriers to power cellular activities are made in

the nucleus

the cytosol

the Golgi apparatus

the mitochondria and chloroplasts

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As a result of the photosynthetic process, which product is formed?

Water

Oxygen

Carbon dioxide

Both (a) and (b)

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The electrons that are released by the splitting of water during photosynthesis ultimately end up in

ATP

NADPH

rubisco

O2

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NADP+ is reduced to NADPH during

light dependent reactions

calvin cylcle

photorespiration

none of these

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