MCQs Botany-34 Posted on October 21, 2025December 3, 2025Author agropublishers 0 MCQs Botany-34 1. The overproduction of Reactive Oxygen Species, such as superoxide radicals and hydrogen peroxide, during both abiotic and biotic stresses primarily results in ____________ Oxidative damage to cellular components Increased stomatal conductance A higher rate of carbon fixation Enhanced nutrient uptake 2. The Svalbard Global Seed Vault is located in ___________ Norway Sweden Finland Denmark 3. Tobacco (Nicotiana tabacum) has diploid chromosome number (2n) = _________ 30 38 48 42 4. Which of the following transport mechanisms does NOT require energy? Endocytosis Active transport Facilitated diffusion Simple diffusion 5. Frost damage in crops is primarily caused by______________ Low relative humidity High respiration at night Reduced photosynthesis Ice crystal formation inside tissues 6. The main role of cellulose in plants is to _________ Regulate water transport Facilitate photosynthesis Provide structural support Store energy 7. How are onions often used in cooking? As a garnish As a sweetener As a flavor enhancer As a thickening agent 8. ___________ the process of intentionally adding beneficial fungi to a plant’s root system to establish a symbiotic relationship, where the fungi help the plant absorb nutrients like phosphorus and nitrogen from the soil in exchange for carbon Rhizobium fixation Fertilization Mycorrhizal inoculation Tillage 9. Land degradation and erosion are fundamentally associated to ____________________ Drought Deforestation Natural resource management Water availability 10. The most common sugar in hemicellulose, especially in hardwoods and cereals, is ___________ Xylose Ribose Galactose Fructose Loading … Question 1 of 10
