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