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