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