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