Cell Structure and Organelles MCQs Quiz 21 Posted on April 4, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 21 Cell Biology Multiple Choice Questions Table of Contents Toggle 1. _____________ enzyme is characteristic of peroxisomes and breaks down hydrogen peroxide Lipase Amylase Pepsin Catalase 2. _____________________ are considered the major organelle source of reactive oxygen species (ROS) in eukaryotic cells Dysfunctional Mitochondria Dysfunctional Vacuole Dysfunctional Golgi apparatus Dysfunctional Lysosome 3. ____________________ is absent in prokaryotic cells Cell membrane Endoplasmic reticulum Cytoplasm Ribosome 4. First organelle to sediment during low-speed centrifugation is _______ Nucleus Ribosome Mitochondria Peroxisome 5. Microbodies include _______ Vacuoles, ER and Golgi Mitochondria and chloroplasts Lysosomes, peroxisomes, glyoxysomes Nucleus and ribosomes 6. _____________ contains highest concentration of digestive enzymes Golgi apparatus Lysosome Peroxisome Nucleus 7. The middle lamella in plants is rich in _______ Cellulose Lignin Hemicellulose Pectin 8. Organelle fractionation in cell begins with disruption of _______ Golgi vesicles Plasma membrane Mitochondrial membrane Nuclear envelope 9. Plasmodesmata are microscopic channels, involved in _______ Cell wall synthesis Transport across the membrane Protein degradation Cell-to-cell communication 10. Marker enzyme to identify mitochondria in biochemical studies is typically _______ Succinate dehydrogenase DNA polymerase Catalase Amylase Loading … Question 1 of 10Cell Structure and Organelles MCQs Quiz 21Cell Biology Multiple Choice Questions 1. _____________ enzyme is characteristic of peroxisomes and breaks down hydrogen peroxide Lipase Amylase Pepsin Catalase 2. _____________________ are considered the major organelle source of reactive oxygen species (ROS) in eukaryotic cells Dysfunctional Mitochondria Dysfunctional Vacuole Dysfunctional Golgi apparatus Dysfunctional Lysosome 3. ____________________ is absent in prokaryotic cells Cell membrane Endoplasmic reticulum Cytoplasm Ribosome 4. First organelle to sediment during low-speed centrifugation is _______ Nucleus Ribosome Mitochondria Peroxisome 5. Microbodies include _______ Vacuoles, ER and Golgi Mitochondria and chloroplasts Lysosomes, peroxisomes, glyoxysomes Nucleus and ribosomes 6. _____________ contains highest concentration of digestive enzymes Golgi apparatus Lysosome Peroxisome Nucleus 7. The middle lamella in plants is rich in _______ Cellulose Lignin Hemicellulose Pectin 8. Organelle fractionation in cell begins with disruption of _______ Golgi vesicles Plasma membrane Mitochondrial membrane Nuclear envelope 9. Plasmodesmata are microscopic channels, involved in _______ Cell wall synthesis Transport across the membrane Protein degradation Cell-to-cell communication 10. Marker enzyme to identify mitochondria in biochemical studies is typically _______ Succinate dehydrogenase DNA polymerase Catalase Amylase Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 21 Cell Biology Multiple Choice Questions
