Cyclic photophosphorylation invloves

(1) PS I

(2) PS II

(3) PS I and PS II

(4) P680

Subtopic:  Light Reactions :2 | Light Reactions :3 | Light Reactions |
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The first stable product of Calvin cycle is 

(1) 3-phosphoglycerate

(2) 1, 3 biphosphoglycerate

(3) glyceraldehyde - 3 phosphate

(4) ribulose - 5- phosphate

Subtopic:  Dark Reaction : Calvin Cycle | Questions on Calvin Cycle |
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PS-II occurs only in

(1) stroma

(2) granal thylakoids

(3) stromal lamella

(4) matrix

Subtopic:  Photosystems |
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Which of the following statements is correct?

(1) Photorespiration is useful process.

(2) C4 plants are more efficient than C3 plants.

(3) C4 plants are less efficient than C3 plants.

(4) Photorespiration is absent in C3 plants but present in C4 plants. 

Subtopic:  Photorespiration | Questions on Photorespiration |
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Photorespiration shows formation of 

(1) sugar but not ATP

(2) ATP but not sugar

(3) both ATP and sugar

(4) neither ATP nor sugar.

Subtopic:  Photorespiration |
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Which of the following is correctly labelled for the given figure?

(1) A : PS II; B : PS I; C : e- acceptor; D : LHC

(2) A : LHC; B : e- acceptor; C : PS I; D : PS II

(3) A : PS I; B : PS II; C : e- acceptor; D : LHC

(4) A : e- acceptor; B : LHC; C : PS II; D : PS I

Subtopic:  Light Reactions :1 | Light Reactions :2 | Light Reactions |
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Kranz anatomy is usually associated with 

(1) C3 plants

(2) C4 plants

(3) CAM plants

(4) C3-C4 intermediate plants.

Subtopic:  C4 Plants Examples | Question on C4 Pathway |
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C4 plants have better productivity because 

(1) C4 plants absorb more light

(2) C4 plants absorb more CO2

(3) C4 plants does not carry photorespiration

(4) C4 plants have more amount of RuBisCO.

 

NCERT Reference:

Page 220

XI NCERT

 

Subtopic:  C4 Plants Examples | Question on C4 Pathway |
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The first carbon dioxide fixation product of C4 plant is 

(1) Oxaloacetic acid

(2) ribulose biphosphate

(3) phosphoenol pyruvate

(4) phosphoglyceric acid.

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
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Carbon dioxide is necessary for photosynthesis. The chemical used to remove this gas most effectively from entering a control apparatus is 

(1) calcium oxide

(2) distilled water

(3) potassium hydroxide solution

(4) sodium carbonate.

Subtopic:  Historical View: Experiments |
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