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