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.

Q.11
A : By insectivorous habit. the insectivorous plants fulfil their nitrogen deficiency.
R : Nitrogen requirement of insectivorous plants are fulfilled through the proteins of insects.

Correct Answer: Option (1)

Q.12
A : Bacterial photosynthesis occurs in presence of oxygen.
R : Bacteria has only PS-11

Correct Answer: Option (4)

Q.13
A : Red drop occur above 680 nm light.
R : PS-II becomes inactive above 680 nm of light.

Correct Answer: Option (1)

Q.14
A : C4-plants are more efficient than C3– plants.
R : C4-plants are photorespiratory plants.

Correct Answer: Option (3)

Q.15
A : Photosynthetic production decreases above 680 nm light.
R : PS-II inactivates above 680 nm wavelength of light.

Correct Answer: Option (1)




Q.16
A : Production of dark reaction is increased at high concentration of oxygen.
R : Rubisco converts in PEPCase at high conc. of oxygen.

Correct Answer: Option (4)

Q.17
A : Photosynthetic bacteria do not release oxygen gas in photosynthesis.
R : Photosynthetic bacteria do not absorb light energy.

Correct Answer: Option (3)

Q.18
A : CAM plants initialy, fixes CO2 during night.
R : They overcome loss of water by this process as stomata closed during day time.

Correct Answer: Option (1)

Q.19
A : Leaf of Nepenthes is modified in to pitcher to capture insects. R Nepenthes lacks chlorophyll & not green in colour.
Photosynthesis

Correct Answer: Option (3)

Q.20
A : Photorespiration is absent in Hatch and Slack plants.
R : These plants lack enzyme of C3-cycle.

Correct Answer: Option (3)


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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