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