MCQs Botany [35] Posted on October 21, 2025Author agropublishers 0 1. In plants hemicellulose provides_______ Structural support to the nucleus Defense against pathogens Elasticity and cross-linking in cell walls Energy storage in seeds 2. The primary function of silica in plant tissues is to ______ Provide flexibility Support photosynthesis Store water Strengthen cell walls and deter herbivory 3. o o o 4. Which of the following processes is most critical for a cell to maintain homeostasis by actively regulating the concentration of ions against a concentration gradient? Simple diffusion Facilitated diffusion Active transport Osmosis 5. What is a common use of ginger in cooking? As a thickening agent As a marinade As a flavor enhancer or spice As a primary sweetener 6. What is the primary function of the pollen tube in flowering plants? To transport male gametes to the egg cell for fertilization To generate male gametes To assist in seed dispersal To nourish the developing embryo 7. According to ISTA rules, for a seed lot consisting of containers, a minimum of ___________ primary samples are required to be taken in total from the seed lot 5 20 15 10 8. The plant family Poaceae is more commonly known as _______ Pea family Lily family Grass family Mustard family 9. During prolonged flooding or waterlogging, phytohormone _____________triggers the aerenchyma formation in the roots, enabling gas exchange and plant survival Jasmonic Acid (JA) Ethylene (ET) Abscisic Acid (ABA) Salicylic Acid (SA) 10. _________ is the largest family of flowering plants Poaceae None of these Fabaceae Asteraceae Loading … Question 1 of 10
