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