Photosynthesis Assertion and Reason | AIIMS Special MCQs

Photosynthesis Assertion and Reason


These Photosynthesis Assertion and Reason questions consist of two statements each, printed as “Assertion” and “Reason“. While answering these Questions you are required to choose any one of the following responses.
(1) If both A and R are True and the R is a correct explanation of the A.
(2) If both A and R are True but R is not correct explanation of the A
(3) If A is True but the R is False.
(4) If both A and R are false.

A : Evolution of O2 is not linked with bacterial photosynthesis.
R : Bacteria absorb the I-R spectrum.

Correct Answer: Option (2)

A : Utricularia captures insects for nitrogen source.
R : This plant grows in nitrogen deficient habitats.

Correct Answer: Option (1)

A : One mole of oxygen gas liberates in bacterial non cyclic ETS.
R : Bacteria is first photosynthetic Eukaryotes.

Correct Answer: Option (4)

A : Lysosomes help in the process of photorespiration.
R : Lysosomes have enzymes for photorespiration.

Correct Answer: Option (4)

A : O2 is not released in photosynthesis of bacteria.
R : Photolysis of water is absent in bacterial photosynthesis.

Correct Answer: Option (1)

A : Action spectrum of photosynthesis is Red & Blue colours of light.
R : Plants absorb maximum Red and Blue colour.

Correct Answer: Option (3)

A : D.C.M.U. is a photosynthetic inhibitor.
R : D.C.M.U. inhibits photolysis of water.

Correct Answer: Option (1)

A : For evolution of O2 in photosynthesis, PS-II is required.
R : O2 is released in photosynthesis, of Chromatium.

Correct Answer: Option (3)

A : Photorespiration is a wasteful phenomenon in C3-plants.
R : Decrease in photosynthetic productivity due to photorespiration.

Correct Answer: Option (1)

A : Dark reaction does not occur in absence of light.
R : Synthesis of assimilatory powers occurs during light reaction.

Correct Answer: Option (1)

Although all the questions of Photosynthesis Assertion and Reason are verified by experts, in case if you detect any error in this page then please inform us, we will update it immediately.


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