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