MCQs Botany-30 Posted on April 3, 2025August 30, 2025Author agropublishers 0 1. What is the overall chemical equation of photosynthesis, which occurs in the chloroplasts of plant cells? Light energy → Mechanical energy Oxygen + Glucose → Water + Carbon dioxide Water + Carbon dioxide → Glucose + Oxygen Light energy → Thermal energy 2. In which part of a flower does fertilization occur? Ovary Style Stigma Anther 3. 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 Calvin cycle takes place in bundle sheath cells The CO2 is fixed at night and stored as malic acid 4. ————– is a primary factor in plant identification Leaf shape and arrangement Plant height Flower color Root depth 5. Agar is a jelly-like structure, and which group of algae is commercially obtained from? Blue-green algae Green algae Red algae Brown algae 6. Where does the Calvin cycle (light-independent stage of photosynthesis) occur? Vacuole Chloroplast stroma Mitochondria Cytoplast 7. 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 8. In a hypotonic solution, cells experience ———- Exosmosis No change Active transport Endosmosis 9. 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 store carbohydrates for plant growth To protect the apical meristem and aid in root penetration 10. Which pigment is directly involved in absorbing light energy for photosynthesis? Xanthophyll Anthocyanin Chlorophyll a Carotene Loading …
