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