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