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