Cell Structure and Organelles MCQs Quiz 30 Posted on April 6, 2026Author agropublishers 0 1. ATP yield from complete oxidation of one glucose molecule in eukaryotic cells is best approximated as _______ 2-3 ATP 4-10 ATP 30–32 ATP 95-100 ATP 2. Which structure organizes cellular components within the cytoplasm? Cytoskeleton Golgi apparatus Lysosome Nucleus 3. Which type of fatty acids are preferentially oxidized in peroxisomes? Medium-chain fatty acids Short-chain fatty acids Unsaturated fatty acids Very long-chain fatty acids 4. Which of the following best describes prokaryotic DNA organization? Stored in mitochondria Attached to spindle fibers Located freely in cytoplasm Enclosed in nuclear envelope 5. ___________ is responsible for protein synthesis in prokaryotes Plasma membrane Capsule Ribosomes Nucleoid 6. Which of the following is a major function of the cytosol? DNA packaging Cell wall formation Membrane synthesis Site of many metabolic reactions 7. The plasma membrane separates _______ Cell interior from external environment Nucleus from cytoplasm Organelles from cytosol DNA from proteins 8. During anaerobic conditions (when oxygen is unavailable), animal cells sustain ATP production primarily by ___________ Glycolysis coupled with fermentation β-oxidation of fatty acids Oxidative phosphorylation via the electron transport chain The citric acid (Krebs) cycle 9. Which organelle is directly involved in xenobiotic detoxification? Nucleus Ribosome Golgi apparatus Smooth endoplasmic reticulum 10. A major detoxification role of peroxisomes involves _______. Neutralization of ROS RNA transcription DNA replication Protein folding Loading … Question 1 of 10
