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