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