Cell Structure and Organelles MCQs Quiz 20 Posted on April 4, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 20 Cell Biology Multiple Choice Questions 1. Nucleolus is the site of _______ Protein glycosylation rRNA synthesis and ribosome assembly DNA replication mRNA translation 2. Rough endoplasmic reticulum is distinguished from smooth endoplasmic reticulum by _______ Attached ribosomes ATP synthesis Lysosomal enzymes Presence of DNA 3. Nucleus is primarily responsible for _______ Protein folding and degradation DNA replication and translation DNA transcription and RNA processing Lipid biosynthesis 4. ____________ is involved in the transporting, modifying, and packaging proteins and lipids within a cell Golgi Complex Chloroplasts Cytoskeleton Chromoplasts 5. Chromosome banding is a cytogenetic technique used for _______ DNA sequencing Identification ATP synthesis Protein folding 6. Nuclear pore complexes mainly regulate _______ Protein degradation Passive diffusion of ions Selective transport of macromolecules ATP synthesis 7. Chloroplast thylakoid membranes are primarily involved in _______ DNA repair Light harvesting and electron transport Protein degradation ATP hydrolysis 8. Proteins synthesized on Rough Endoplasmic Reticulum are typically destined for _______ Cytosol only Nuclear DNA replication Mitochondrial matrix only Secretion or membranes 9. Gram-negative bacteria possess _______ Outer membrane with lipopolysaccharides Chitin layer Only peptidoglycan No outer membrane 10. A stack of thylakoids within a chloroplast is called a _________ Cisterna Cristae Granum Matrix Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 20 Cell Biology Multiple Choice Questions