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NEET BIOLOGYPhotosynthesis in Higher Plants Easy

Question

Which of the following are required for the dark reaction of photosynthesis? A: Light B: Chlorophyll C: CO2 D: ATP E: NADPH

Choose the correct answer from the options given below:

A

B, C and D only

B

C, D and E only

C

D and E only

D

A, B and C only

Step-by-Step Solution

the dark reaction (biosynthetic phase) does not directly depend on the presence of light but is dependent on the products of the light reaction, i.e., ATP and NADPH, besides CO2 and H2O . The light reaction (photochemical phase) involves light absorption and chlorophyll, while the dark reaction occurs in the stroma where sugars are synthesised using the energy and reducing power produced earlier .

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 followingrequiredreactionphotosynthesischlorophyll

More Photosynthesis in Higher Plants Questions

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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
EasySolve

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
MediumSolve

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
MediumSolve

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