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NEET BIOLOGYPhotosynthesis in Higher Plants Medium

Question

Study the pathway given below: In which of the following options, correct words for all the three blanks A, B and C are indicated?

A

Fixation, Transamination, Regeneration

B

Fixation, Decarboxylation, Regeneration

C

Carboxylation, Decarboxylation, Reduction

D

Decarboxylation, Reduction, Regeneration

Step-by-Step Solution

According to the NCERT text and Figure 11.9 representing the Hatch and Slack (C4) pathway, the process involves three major steps labeled in the diagram: 1. Fixation of atmospheric CO2 by Phosphoenol pyruvate (PEP) in the mesophyll cells. 2. Decarboxylation of the C4 acid in the bundle sheath cells to release CO2. 3. Regeneration of PEP from the C3 acid transported back to the mesophyll cells.

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Photosynthesis in Higher Plants . Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYPhotosynthesis in Higher Plants pathwayfollowingoptionscorrectblanks

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Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

A.Reduction of NADP to NADPH₂ on the stroma side of the membrane
B.Breakdown of proton gradient
C.Breakdown of electron gradient
D.Movement of protons across the membrane to the stroma
MediumSolve

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

A.C4
B.CAM
C.Nitrogen –fixer
D.C3
MediumSolve

In Hatch and Slack pathway, the primary CO2 acceptor is -

A.Oxaloacetic acid
B.Phosphoglyceric acid
C.Phosphoenol pyruvate
D.Rubisco
EasySolve

Which of the following statements about RuBisCO is true?

A.It is an enzyme involved in the photolysis of water.
B.It catalyzes the carboxylation of RuBP.
C.It is active only in the dark.
D.It has higher affinity for oxygen than carbon dioxide.
MediumSolve

Oxygen is not produced during photosynthesis by:

A.Green sulphur bacteria
B.Nostoc
C.Cycas
D.Chara
MediumSolve

During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?

A.Oxygen
B.Water
C.Carbon dioxide
D.Light
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Match List-I with List-II: List-I A. C4 Pathway B. Light reaction C. Photorespiration D. Calvin cycle List-II I. 2H2O → 4H+ + O2 + 4e- II. Ribulose 1,5-bisphosphate III. 3-carbon molecule, phosphoenol pyruvate IV. Phosphoglycolate

A.A-II, B-I, C-IV, D-III
B.A-IV, B-II, C-I, D-III
C.A-III, B-I, C-IV, D-II
D.A-III, B-IV, C-II, D-I
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Given below are two statements: Statement I: RuBisCO is the most abundant enzyme in the world. Statement II: Photorespiration does not occur in C4 plants. In the light of the above statements, choose the most appropriate answer from the options given below:

A.Statement I is correct but Statement II is incorrect
B.Statement I is incorrect but Statement II is correct
C.Both Statement I and Statement II are correct
D.Both Statement I and Statement II are incorrect
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