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