MCQs Botany-27 Posted on March 9, 2025August 30, 2025Author agropublishers 0 1. Response of plants to high salinity include ———— Accumulation of compatible solutes Both Accumulation of compatible solutes and Reduced photosynthesis Reduced photosynthesis None of these 2. What is the overall equation for photosynthesis? 6H₂O + 6O₂ → C₆H₁₂O₆ + 6CO₂ 6CO₂ + 12H₂O → C₆H₁₂O₆ + 6O₂ + 6H₂O 6CO₂ + 6O₂ → C₆H₁₂O₆ + 6H₂O 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ 3. Taxonomically, conifers are included in which group of plants? Mosses Pteridophytes Bryophytes Gymnosperms 4. ———— pigment plays a central role in photosynthesis? Carotenoid None of these Anthocyanin Chlorophyll 5. CAM (Crassulacean Acid Metabolism) plants conserve water in arid environments and fix CO₂ primarily during ———— Evening Daytime Nighttime Midday 6. CLCV stands for__________________? Cotton leaf cover virus Cotton leaf curl virus Cotton leaf cotton virus Cotton leaf complete virus 7. Organisms that obtain their nutrition by feeding on dead and decaying organic matter are called _____________________. Parasites Obligate parasites Saprophytes Bacteria 8. ———– removes CO₂ from the atmosphere and converts it into organic matter Decomposition Photosynthesis Combustion Respiration 9. What is the potential role of soil organic carbon in relation to plant growth? It provides direct energy to plants It acts as a carbon sink and improves soil fertility It prevents water absorption by roots It decreases soil microbial activity 10. Lenticels are small porous openings in plants, often associated with the formation of——— Vascular cambium Intercalary meristem Apical meristem Cork cambium Loading …
