MCQs Botany-30 Posted on April 3, 2025August 30, 2025Author agropublishers 0 1. ————– is a primary factor in plant identification Flower color Leaf shape and arrangement Plant height Root depth 2. What is the primary function of the root cap? To facilitate gas exchange in the root To absorb water and minerals from the soil To protect the apical meristem and aid in root penetration To store carbohydrates for plant growth 3. Agar is a jelly-like structure, and which group of algae is commercially obtained from? Green algae Brown algae Blue-green algae Red algae 4. Where does the Calvin cycle (light-independent stage of photosynthesis) occur? Cytoplast Chloroplast stroma Vacuole Mitochondria 5. Which pigment is directly involved in absorbing light energy for photosynthesis? Chlorophyll a Carotene Xanthophyll Anthocyanin 6. In a hypotonic solution, cells experience ———- No change Active transport Exosmosis Endosmosis 7. What is the overall chemical equation of photosynthesis, which occurs in the chloroplasts of plant cells? Oxygen + Glucose → Water + Carbon dioxide Light energy → Thermal energy Light energy → Mechanical energy Water + Carbon dioxide → Glucose + Oxygen 8. In which part of a flower does fertilization occur? Style Ovary Anther Stigma 9. What is the primary component of the phloem tissue responsible for transporting organic compounds, such as sugars and amino acids? Guard cells Xylem vessels Sieve tubes Tracheids 10. What distinctive feature of Crassulacean Acid Metabolism (CAM) plants sets them apart from C3 and C4 plants in terms of CO2 fixation? CO2 fixation occurs exclusively during the day CAM plants rely on a different enzyme for CO2 fixation The CO2 is fixed at night and stored as malic acid The Calvin cycle takes place in bundle sheath cells Loading …
