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