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