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