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