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