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