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