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