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