Cell Structure and Organelles MCQs Quiz 3 Posted on April 2, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 3 Cell Biology Multiple Choice Questions 1. Bacterial capsules primarily enhance _________ ATP synthesis Protein folding Virulence and protection against host defenses DNA replication 2. Euchromatin is generally _________ Inactive Transcriptionally active Protein-free DNA-free 3. The chemiosmotic theory explains the mechanism of _________ DNA replication Membrane transport ATP synthesis driven by a proton gradient Protein folding 4. Chromatin is composed of __________________ DNA associated with histone and non-histone proteins RNA only Long chained Lipids ATP molecules 5. Secretory vesicles are primarily involved in __________________________ Exocytosis Endocytosis DNA replication ATP synthesis 6. Chloroplasts contain which internal membrane structures responsible for light reactions? Cisternae Thylakoids Cristae Lamellae 7. ATP synthase in mitochondria is primarily located in the ____________ Inner mitochondrial membrane Outer membrane Cytosol Matrix 8. Storage granules primarily function to store ________________ Proteins only Energy reserves RNA DNA 9. The nucleolus is the primary site of ___________ Protein degradation ATP synthesis DNA replication rRNA synthesis and ribosome assembly 10. The trans-Golgi network is mainly responsible for _____________ ATP synthesis Sorting and targeting proteins DNA replication Protein synthesis Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 3 Cell Biology Multiple Choice Questions