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