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