Cell Structure and Organelles MCQs Quiz 12 Posted on April 2, 2026April 2, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 12 Cell Biology Multiple Choice Questions 1. ___________________ is unique to bacterial cell walls and targeted by antibiotics like penicillin Cellulose Chitin Peptidoglycan synthesis Silica 2. Acrocentric chromosomes have _______ Near-terminal centromere Central centromere No centromere Equal arms 3. Which enzyme counteracts telomere shortening? RNA polymerase DNA telomer ligase Telomerase Helicase 4. Chromosome puffs, found in polytene chromosomes, indicate _______ DNA damage Protein folding Active transcription Inactive regions 5. In chloroplasts, grana are composed of stacked _______ Vesicles Cristae Ribosomes Thylakoids 6. Telomerase primarily functions to maintain _____________ DNA replication fidelity Protein folding Centromere structure Telomere length 7. The green color of chloroplast is due to _______ Anthocyanin Xanthophylls Carotenoids Chlorophyll 8. Elaioplasts are specialized for storage of _______ Starch DNA Proteins Lipids 9. _______________ is the outermost layer of the plant cell wall, acting as an interface between adjacent cells Secondary wall Middle lamella Primary wall Plasma membrane 10. Chromosomes are composed primarily of _______ DNA and Proteins DNA and RNA Proteins and RNA RNA and Amino Acids Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 12 Cell Biology Multiple Choice Questions