ATPase enzyme consists of two parts. What are those parts? How are they arranged in the thylakoid membrane? The conformational changes occur in which part of the enzyme?

2

(a)

What is the basis for designating C₃ and C₄ pathways of photosynthesis?

2

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Mention any two reasons, which prove that photosynthesis is essential for sustaining life on the earth.

2

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Cyanobacteria and some other photosynthetic bacteria do not have chloroplasts.How do they conduct photosynthesis?

2

(a)

By looking at a plant externally can you tell whether a plant is C₃ or C₄ ? Why and how?

2

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Expand RuBP and also mention the role of RuBP in photosynthesis.

2

(a)

Why is the lumen of thylakoids acidic while, the stroma is alkaline in nature?

2

(a)

Dark reactions are dependent on light yet are called dark reactions. Justify.

2

(a)

What is the chemical equation to express photosynthesis?

2

(a)

Define light reactions.

2

(a)

During which reaction carbon fixation takes place?

2

(a)

Explain Kranz anatomy.

2

(a)

The Clavin cycle takes place in which cells of C₄ plants?

2

(a)

Tomatoes, carrots and chillies are red in colour due to the presence of one pigment? Is it a photosynthetic pigment?---M---G1---

2

(a)

Why not photorespiration does take place in C₄ plants?

2

(a)