Photphosphorylation is

Photphosphorylation is

Options

(a) synthesis of ATP in presence of light (b) breakdown of ATP to give energy (c) photolysis of water (d) synthesis of starch

Correct Answer:

synthesis of ATP in presence […]

Photosynthetically least efficient radiation is

Photosynthetically least efficient radiation is

Options

(a) blue (b) yellow (c) green (d) red

Correct Answer:

green

Explanation:

In light spectrum blue and red regions are most effective in photosynthesis. Blue wavelengths of […]

Photorespiration takes place only in

Photorespiration takes place only in

Options

(a) green parts of the plant (b) mitochondria of plant cell (c) all living cells of plant (d) root of hydrophytic plant

Correct Answer:

green parts of […]

Photorespiration could easily be detected in

Photorespiration could easily be detected in

Options

(a) C₃ plants (b) C₄ plants (c) Both C₃ plants & C₄ plants (d) C₁ plant

Correct Answer:

C₃ plants

Explanation:

Fairly good amount of photosynthetic […]

PEP is the CO receptor in which plants

PEP is the CO₂ receptor in which plants?

Options

(a) C₁ (b) C₂ (c) C₃ (d) C₄

Correct Answer:

C₄

Explanation:

CO₂ in C₄ plants (sugarcane, maize) combines with a 3-carbon compound phosphoenol […]

O evolution is directly associated with

O₂ evolution is directly associated with:

Options

(a) PS I (b) PS II (c) phytochrome (d) phycocyanin

Correct Answer:

PS II

Explanation:

During photolysis of water the electrons released are picked up by […]

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