26 JULY 2021 CURRENT AFFAIRS QUIZ

In algae, photosynthesis takes place in

choloroplasts

cell membrane

None of these

mitochondria

TRUE ANSWER : ?
YOUR ANSWER : ?

The cytochrome c oxidase complex

all of these

donates four electrons to O2

accepts electrons from cyt c

pumps protons out of the matrix space

TRUE ANSWER : ?
YOUR ANSWER : ?

Carbon fixation requires the expenditure of ATP molecules which is generated by

replenishment of chlorophyll

formation of glucose during the Calvin cycle

ETS (electron transfer system) during the light reactions

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

ATP

CO2

O2

Sunlight

TRUE ANSWER : ?
YOUR ANSWER : ?

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

O2

Carbohydrate

NADPH

ATP

TRUE ANSWER : ?
YOUR ANSWER : ?

Where do the protons come from that make up the proton gradient used in the light reactions of photosynthesis?

H2O

ATP

Glucose

NADPH

TRUE ANSWER : ?
YOUR ANSWER : ?

If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?

In the water used

In the carbohydrate produced

In the NADPH

In the oxygen given off by the plant

TRUE ANSWER : ?
YOUR ANSWER : ?

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

750 nm

600 nm

550 nm

700 nm

TRUE ANSWER : ?
YOUR ANSWER : ?

Electron transport systems play a vital role in

Calvin cycle

photorespiration

all of these

light-dependent reactions

TRUE ANSWER : ?
YOUR ANSWER : ?

During the light-dependent reactions of photosynthesis, which of the following does not occur?

Carbon dioxide fixation

Release of oxygen

Absorption of light energy by photosystems

Splitting of water

TRUE ANSWER : ?
YOUR ANSWER : ?

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