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