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