Cell Structure and Organelles MCQs Quiz 1 Posted on April 1, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 1Cell Biology Multiple Choice Questions 1. The primary function of mitochondria is __________ Protein synthesis ATP production through oxidative phosphorylation Lipid synthesis DNA storage 2. Which cellular component is present in both prokaryotic and eukaryotic cells? Ribosomes Membrane-bound organelles Mitochondria Nucleus 3. Mitochondria are believed to have originated through _________________ Fluid Mosaic Model Endosymbiotic theory Central dogma RNA world hypothesis 4. ______________ is the largest organelle in most plant cells Vacuole Chloroplast Nucleus Golgi apparatus 5. Chloroplasts in plant cells are believed to have originated from _____________ Fungi Viruses Proteobacteria Cyanobacteria 6. Ribosomes are primarily composed of _______ RNA and proteins DNA and RNA DNA and proteins Lipids and carbohydrates 7. Which organelle, unique to plant cells, is primarily responsible for photosynthesis? Peroxisome Chloroplast Mitochondria Golgi apparatus 8. The cytoskeleton primarily provides ______________ DNA replication machinery Protein folding mechanisms Structural support and cell shape ATP synthesis sites 9. Prokaryotic cells differ fundamentally from eukaryotic cells by lacking _______ Membrane-bound organelles Ribosomes Cytoplasm Plasma membrane 10. Storage granules are best described as ________ Protein-free inclusions DNA-based compartments Non-membranous structures Double-membrane organelles Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 1 Cell Biology Multiple Choice Questions