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