MCQs Botany-28 Posted on March 9, 2025August 30, 2025Author agropublishers 0 1. Which hormone helps in breaking seed dormancy? Gibberellin Cytokinin Abscisic acid Ethylene 2. ——— is the first steroid hormone group discovered in plants Ethylene Turgorins Abscisic acid Brassinosteroid 3. Tocopherols are a class of lipid-soluble compounds that are commonly referred to as ———- Vitamin D Vitamin A Vitamin E Vitamin C 4. What is the role of ATP in photosynthesis? Carbon fixation Energy transfer Oxygen production Water splitting 5. In a hypertonic solution, cells undergo ———- None of these Active transport Endosmosis Exosmosis 6. What is the major constituent of the protoplast? Carbon Water Oxygen Cellulose 7. What is the primary source of carbon for plants? Methane None of these Atmospheric CO₂ Soil organic matter 8. ———- is the family name of common cotton plant Gramineae Solanaceae Malvaceae Poaceae 9. ————— is the process of storing, analyzing, and interpreting large amounts of biological data, including genetic sequences, protein structures, and gene expression data Data science Computational biology Systems biology Bioinformatics 10. What is leghemoglobin? An enzyme that catalyzes the conversion of atmospheric nitrogen to ammonia An oxygen-carrying protein in root nodules of legumes, facilitating nitrogen fixation A protein that stores nitrogen in plant cells A pigment that absorbs light energy for photosynthesis Loading …
