MCQs Botany-16 Posted on 2024-07-142024-11-08Author admin 0 MCQs Botany-16 1. At which temperature (oC) water has maximum density? 0 °C 100 °C 50 °C 4 °C 2. Which of the following plants uses the C4 pathway? Pineapple Cactus Wheat Maize 3. Guttation occurs through —-. Hydathodes Lenticels Stomata Salt glands 4. What is the role of aquatic producers in an ecosystem? To decompose organic matter To prey on secondary consumers To consume other organisms To produce organic matter from sunlight 5. The shrinkage of protoplasm due to loss of water is known as —— Diffusion Endosmosis Plasmolysis Exosmosis 6. ——— is a monosaccharide and the most common source of energy for cells Galactose Glucose Ribose Fructose 7. What happens when plants take up excessive sodium? Calcium uptake decreases Nitrogen uptake increases Potassium uptake decreases Potassium uptake increases 8. ———— is the causal organism of citrus canker Bacillus subtilis Xanthomonas citri Pseudomonas syringae Erwinia amylovora 9. Which of the following is considered a persistent organic pollutant (POP)? DDT Benzene Carbon monoxide Ozone 10. For metabolic processes of the cell, energy is supplied by ————-molecules. ADP AMP NADP ATP Loading …
