MCQs Botany-21 Posted on February 11, 2025August 30, 2025Author agropublishers 0 1. What is the immediate source of energy for cellular processes? FADHâ‚‚ (Flavin Adenine Dinucleotide) ATP (Adenosine Triphosphate) NADH (Nicotinamide Adenine Dinucleotide) Glucose 2. ——- is a defining feature of chloroplasts Chloroplasts play a primary role in cellular respiration Chloroplasts are primarily involved in water and nutrient storage Chloroplasts are present in all eukaryotic cells Chloroplasts contain chlorophyll for photosynthesis 3. Which of the following is a primary function of the cell membrane? Providing structural support to the cell Regulating the movement of substances in and out of the cell Storing and transmitting genetic information Synthesizing proteins for cellular functions 4. Primary function of ———- is to provide structural support to the cell Nucleus Cell wall Ribosome Plasma membrane 5. Which process ensures genetic diversity in plants by producing haploid cells with unique combinations of chromosomes? Mitosis Budding Binary fission Meiosis 6. Which process is directly dependent on photosynthesis? Plant growth Cellular respiration Decomposition Water cycle 7. What is the primary role of ethylene in plants? Promote cell elongation Induce seed dormancy Inhibit plant growth Regulate fruit ripening and senescence 8. What is primary succession? Reestablishment of an ecosystem after human activities like logging A natural progression of species replacement in an existing grassland ecosystem 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 9. What is the primary purpose of mitosis? Reduce the chromosome number by half Increase genetic diversity through recombination Produce gametes for sexual reproduction Enable growth and tissue repair 10. ————- is a stack of thylakoids Matrix Granum Stroma Lamellae Loading …
