Cell Structure and Organelles MCQs Quiz 2 Posted on April 1, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 2Cell Biology Multiple Choice Questions 1. Plasmids are best described as ______________ Protein complexes RNA molecules Lipid structures Small circular extrachromosomal DNA molecules 2. The nucleus is enclosed by a ___________ Single membrane No membrane Triple membrane Double membrane 3. Chloroplasts are primarily responsible for _____________ Respiration DNA replication Protein synthesis Photosynthesis 4. The Golgi apparatus modifies proteins primarily through _____________ ATP synthesis Glycosylation and post-translational modification DNA replication Protein degradation 5. Bacterial capsules primarily enhance ______________ Virulence and protection against host defenses DNA replication Protein folding ATP synthesis 6. Cristae in mitochondria primarily function to increase ______________ RNA synthesis Lipid storage DNA content Surface area for oxidative phosphorylation 7. Peroxisomes play a major role in detoxifying ____________ RNA Hydrogen peroxide ATP DNA 8. Lysosomes are rich in which type of enzymes? Ligases Hydrolases Polymerases Kinases 9. Mitochondrial DNA (mtDNA) is typically _______________ RNA-based Linear Protein-based Circular 10. The smooth endoplasmic reticulum (SER) is primarily involved in _________ Protein folding DNA replication RNA synthesis Lipid synthesis and detoxification processes Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 2 Cell Biology Multiple Choice Questions