PHOTOSYNTHESIS AND RESPIRATION QUIZ

In oxygenic photosynthesis, the electron donor is

NADPH

oxygen

water

NADH

TRUE ANSWER : ?
YOUR ANSWER : ?

Which enzyme is involved in carbon-fixation reaction?

Ribulose bisphosphate carboxylase

NADP reductase

Cytochrome reductase

Glycerol kinase

TRUE ANSWER : ?
YOUR ANSWER : ?

In the initial step of photosynthesis, sunlight energizes the electron pair of

chlorophyll pigments

carbon dioxide

adenosine triphosphate (ATP)

water

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxidative phosphorylation is to respiration as __________ is to photosynthesis

carbon fixation

reduction of NADPH

light capture by chlorophyll

electron transport chain

TRUE ANSWER : ?
YOUR ANSWER : ?

In oxygenic photosynthesis, water is split in order to provide the

O2 needed for the dark reactions

electrons needed to reduce P680

electrons needed to reduce NADH

electrons needed for cyclic photophosphorylation

TRUE ANSWER : ?
YOUR ANSWER : ?

A eukaryotic cell that can carry out only fermentation instead of the complete aerobic respiration of glucose

all of these

produces less CO2

is lacking in O2

has mitochondria present

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following serves as a reactant in photosynthesis and a product in cellular respiration?

O2

CO2

ATP

Sunlight

TRUE ANSWER : ?
YOUR ANSWER : ?

Where does the O2 come from that is essential for the proper functioning of oxidative phosphorylation?

Dark reactions of photosynthesis

Carbon fixation

Light reactions of photosynthesis

Fermentation

TRUE ANSWER : ?
YOUR ANSWER : ?

In the Calvin cycle, carbon dioxide is fixed in a reaction with the

ribulose diphosphate

ribulose phosphate

ribose tri phosphate

3-phosphoglyceric acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Electron transport systems play a vital role in

Calvin cycle

light-dependent reactions

photorespiration

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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