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