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