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.1
A : CAM plants may show photorespiration.
R : Dark reaction occurs during day time in CAM plants.

Correct Answer: Option (2)

Q.2
A : The only product of light reaction, required in dark reaction are NADPH2 and ATP.
R : Dark reaction occurs in night only.

Correct Answer: Option (3)

Q.3
A : All plants are not photosynthetic.
R : Leaves are large in all types of plants.

Correct Answer: Option (3)

Q.4
A : The first product of CO2 fixation in C4 plants is OAA.
R : Oxaloacetic acid is formed in agranal chloroplast.

Correct Answer: Option (3)

Q.5
A : Rafflesia is a pitcher plant.
R : Rafflesia grows in nitrogen deficient soil.

Correct Answer: Option (4)




Q.6
A : Daily preodicity of stomata! movement is not character of CAM plants.
R : In CAM plants stomata are closed at night and day.

Correct Answer: Option (4)

Q.7
A : Site of light and Dark reactions are different in C4-plants.
R : Two type of photosynthetic cells found in C4-plants.

Correct Answer: Option (1)

Q.8
A : Mangnese is important for Hill reaction.
R : Photolysis of water occurs in the presence of manganese.

Correct Answer: Option (1)

Q.9
A : Oxygen liberates during photosynthesis in cyanobacteria.
R : Cyanobacteria use H2S as source of electron or hydrogen.

Correct Answer: Option (3)

Q.10
A : Amaranthus and sugarcane are called as Hatch and Slack plants
R : One glucose forms by fixation of 6CO2 in these plants.

Correct Answer: Option (2)


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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