Photosynthesis in Higher Plants DPP-03 PDF 2023
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Uploaded by BountifulThulium1633
2023
YAKEEN
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Summary
This document is a 2023 practice paper for photosynthesis in Higher Plants. Questions cover the light-dependent and light-independent reactions, key components of photosystems, and associated processes. It's a useful resource for biology students.
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1 YAKEEN 2.0 2023 Photosynthesis in Higher Plants DPP-03 1. Read the following statements and select the correct 7. The biochemical objective of PS I is to ones....
1 YAKEEN 2.0 2023 Photosynthesis in Higher Plants DPP-03 1. Read the following statements and select the correct 7. The biochemical objective of PS I is to ones. (1) Oxidase NADPH (i) PS I is involved in non-cyclic photophosphorylation (2) Hydrolyse ATP only. (3) Phosphorylate AdP (ii) PS II is involved in both cyclic and non-cyclic (4) Reduce NADP+ photophosphorylation only. (iii) Stroma lamellae membranes possess PS I only, 8. During light reaction in photosynthesis the following whereas grana lamellae membranes possess both are formed. PS I and PS II (1) ATP and sugar (1) (i) only (2) (ii) only (2) Hydrogen, O2 and sugar (3) (iii) only (4) (i), (ii) and (iii) (3) ATP, hydrogen and O2 (4) ATP, hydrogen and O2 donor 2. Light reaction of photosynthesis results in the formation of 9. The active component of photosystem I (PSI) is (1) O2 (2) NADPH composed to (3) ATP (4) All of these (1) Chlorophyll a with absorption peak at 680 nm (2) Chlorophyll a with absorption peak at 700 nm 3. Which of the following pair is mismatched? (3) Chlorophyll h with absorption peak at 680 nm (1) Photosystem I - Uses the P700 molecule in its (4) Chlorophyll a and h with absorption peak at 700 photocentre. nm (2) Antenna complex - Contains hundreds of pigment molecule. 10. PS-I has absorption peak at A______ and PS II has (3) PGA – 3 – carbon compound. absorption peak at B______. (4) Dark reaction - Takes place in the grana of the Choose the correct option and fill the blank chloroplast. (1) A-700 nm; B-800 nm (2) A-680 nm; B-700 nm 4. Which of the following does not make photosystem (3) A-700 nm; B-680 nm more efficient by absorbing light of different (4) A-800 nm; B- 700 nm wavelengths? (1) Photo centre (2) Light harvesting complex 11. An energy diagram for the transfer of electrons in the (3) Antenna (4) More than one light reactions of photosynthesis in plants is (1) Cyclic photo-phosphorylation 5. Which of the following is associated with FNR? (2) Z-band (1) PS I (3) Z-Scheme (2) PS II (4) Redox potential scale (3) PS associated with oxygen evolving complex (4) More than one 12. Splitting of water is related with (1) Photosystem I 6. How many oxygen atoms are released when 24 (2) Photosystem II photons are provided to photosystems? (3) Both (1) and (2) (1) 3 (2) 12 (4) Cyclic photo-phosphorylation (3) 6 (4) 8 2 13. ATP synthesis, in photosynthesis involves the 16. The Z scheme of photophosphorylation follows the (1) Establishment of a proton gradient. following sequence: (2) Oxidation of water. PS II ⎯⎯ A → e– acceptor ⎯⎯ B → ETS ⎯⎯ B → PS I (3) Reduction of NADP+ ⎯⎯ → e– acceptor ⎯⎯ → NADP+ C D (4) Flow of electrons. Which of the following options is correct for A, B, C 14. In photosynthesis, protons accumulate in the and D transfer of electrons? (1) Inner membrane space of mitochondria A B C D (2) Matrix of mitochondria (1) Uphill Downhill Uphill Downhill (3) Lumen of thylakoid (2) Downhill Uphill Downhill Uphill (4) Stroma of thylakoid (3) Downhill Uphill Uphill Downhill (4) Uphill Downhill Downhill Uphill 15. Which of the following is/are formed during Z-scheme of photophosphorylation? (1) ATP (2) NADPH2 (3) O2 (4) All of these 3 Note: Kindly find the Video Solution of DPPs Questions in the DPPs Section Answer Key 1. (3) 9. (2) 2. (4) 10. (3) 3. (4) 11. (3) 4. (1) 12. (2) 5. (1) 13. (1) 6. (3) 14. (3) 7. (4) 15. (4) 8. (3) 16. (1) For more questions, kindly visit the library section: Link for app: https://links.physicswallah.live/vyJw For more questions, kindly visit the library section: Link for web: https://physicswallah.live/tabs/tabs/library-tab PW Mobile APP: https://physicswala.page.link/?type=contact-us&data=open For PW Website: https://www.physicswallah.live/contact-us