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