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