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