Prepare for NEET Biology Photosynthesis in Higher Plants with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to grasp light and dark reactions.
PEP carboxylase
I. is involved in atleast some fixation in both and plants
II. Catalyses the reaction of fixing into pyruvic acid in bundle sheath cells
III. is capable of fixing more efficiently at lower atmospheric concentration than RuBP carboxylase
Select the correct option
I only
I and III
II and III
I, II and III
PEP carboxylase
I. is involved in atleast some fixation in both and plants
II. Catalyses the reaction of fixing into pyruvic acid in bundle sheath cells
III. is capable of fixing more efficiently at lower atmospheric concentration than RuBP carboxylase
Select the correct option
I and II
I and III
II and III
I, II and III
Which one of the following is not true about the light reactions of photosynthesis?
Light energy is converted into chemical energy.
Water molecules are split.
ATP and NADPH are produced.
Carbon dioxide is incorporated into organic molecules.
Which one of the following is not true about the light reactions of photosynthesis?
Light energy is absorbed by chlorophyll
Water is split
ATP is produced
Carbon dioxide is fixed
In an experiment, a leaf was partially covered with black paper, and other one was exposed to light. On testing these leaves for starch, in the presence of sunlight, on may conclude that photosynthesis had occurred in
Green part of leaves
Black paper covered part of leaves
Both (a) and (b)
None of the above
I. It is the characteristic of plants II. It is the characteristic of -plants III. It occurs in chloroplast IV. It occurs in day time V. It occurs in night Select the correct options in relation to photorespiration Correct option Incorrect option
I, IV II, III, IV
II, III, IV I, V
I, II, III IV, V
IV, V I, II, III
During the experiment in laboratory, the thylakoid is some how punctured so that the interior of the thylakoid is no longer separated from stroma. This damage will have the direction effect on
ATP formation
Absorption of light
Flow of electrons from PS-I to PS-II
All of the above
During the experiment in laboratory, the thylakoid is some how punctured so that the interior of the thylakoid is no longer separated from stroma. This damage will have the direction effect on
ATP formation
Absorption of light
Flow of electrons from PS-I to PS-II
All of the above
The following (I-IV) are the main steps of chemosynthetic ATP synthesis in the light reaction. Arrange them in correct order
I. concentration gradient established
II. diffuses through ATP synthetase
III. Carriers use energy from electrons to move across the membrane
IV. Electrons from PS-II pass along electron transport chain
V. Light excites electrons in PS-II
VI. Energy of flow is used by ATP synthetase to make ATP
I, II, III, IV, V, IV
II, IV, V, III, II, VI
V, IV, III, I, II, VI
V, VI, III, IV, II, I
The following (I-IV) are the main steps of chemosynthetic ATP synthesis in the light reaction. Arrange them in correct order
I. concentration gradient established
II. diffuses through ATP synthetase
III. Carriers use energy from electrons to move across the membrane
IV. Electrons from PS-II pass along electron transport chain
V. Light excites electrons in PS-II
VI. Energy of flow is used by ATP synthetase to make ATP
I, II, III, IV, V, IV
II, IV, V, III, II, VI
V, IV, III, I, II, VI
V, VI, III, IV, II, I
