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