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