MCQs Botany-21 Posted on February 11, 2025August 30, 2025Author agropublishers 0 1. ——- is a defining feature of chloroplasts Chloroplasts contain chlorophyll for photosynthesis Chloroplasts are present in all eukaryotic cells Chloroplasts are primarily involved in water and nutrient storage Chloroplasts play a primary role in cellular respiration 2. What is the primary purpose of mitosis? Increase genetic diversity through recombination Enable growth and tissue repair Reduce the chromosome number by half Produce gametes for sexual reproduction 3. Which process is directly dependent on photosynthesis? Plant growth Cellular respiration Decomposition Water cycle 4. Which process ensures genetic diversity in plants by producing haploid cells with unique combinations of chromosomes? Binary fission Mitosis Budding Meiosis 5. What is the immediate source of energy for cellular processes? NADH (Nicotinamide Adenine Dinucleotide) FADHâ‚‚ (Flavin Adenine Dinucleotide) Glucose ATP (Adenosine Triphosphate) 6. Primary function of ———- is to provide structural support to the cell Ribosome Cell wall Plasma membrane Nucleus 7. ————- is a stack of thylakoids Granum Matrix Stroma Lamellae 8. Which of the following is a primary function of the cell membrane? Synthesizing proteins for cellular functions Storing and transmitting genetic information Regulating the movement of substances in and out of the cell Providing structural support to the cell 9. What is primary succession? A natural progression of species replacement in an existing grassland ecosystem Reestablishment of an ecosystem after human activities like logging Ecological succession in a previously uninhabited and barren area with no existing soil Recovery of an ecosystem after a disturbance, utilizing existing soil and vegetation 10. What is the primary role of ethylene in plants? Regulate fruit ripening and senescence Inhibit plant growth Promote cell elongation Induce seed dormancy Loading …
