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9. The role of carrier proteins in light reaction is- (1) To transfer energetic electrons from PSII to PSI. (2) Pumping of Protons (3) Formation of ATP (4) Transferring of […]

8 Electrons excited from PS II are accepted by- (1) PQ                    (2) Pheophytin (3) PC                   (4) Cyt b6 Electron Acceptance in Photosystem II Introduction Key phrase: electron acceptor after […]

The major difference in PS-I and PS-il found in Chloroplast are (1) Position on grana (2) Chlorophyll a (3) Position of electron carriers (4) Light harvesting Major Differences Between PSI […]

6 DCMU effects the photosynthesis by attacking at (1) Ps I         (2) PS II (3) PC          (4) Cyt b-f6 DCMU Effects on Photosynthesis: Target Site Introduction Key phrase: DCMU inhibits […]

5        Most sensitive part of Photosynthesis is (1) PS-I                                       (2) PS-II (3) Carboxylation reaction (4) Photolysis of water Photosynthesis Sensitivity: Key Steps Under Stress Introduction Key phrase: most sensitive part […]

4 Which protein component is mobile in between PS II and PS I ? (1) PC                             (2) PQ (3) Cytochrome F6                (4) Ferrodoxin The correct answer is (1) […]

3. Which of the following statements regarding chlorophyll is NOT correct? (1) Chlorophyll-a has a —CH3 group in its porphyrin-like ring structure. (2) Chlorophyll-b has -CHO group in its porphyrin-like […]

The figure below depicts the absorption spectra of chlorophylls and carotenoid over a range of Which one of the following combinations best describes A, B and C from the absorption […]