Cell Structure and Organelles MCQs Quiz 24 Posted on April 5, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 24Cell Biology Multiple Choice Questions 1. Differential centrifugation separates organelles based on _______ Density and size Enzyme activity Charge pH sensitivity 2. The basal body of cilia structurally resembles _______ Nucleus Golgi apparatus Lysosome Centriole 3. The restriction point (R point), the checkpoint beyond which a cell is committed to DNA replication, is located in which phase of the cell cycle? M phase G₂ phase G₁ phase S phase 4. Translocation is a type of genetic rearrangement, involves _______ Protein folding DNA replication Loss of DNA Exchange of segments 5. Movement of cilia and flagella is primarily driven by _______ Kinesin Myosin Dynein Actin 6. __________ are the structural feature that convert microtubule sliding into bending in cilia Basal bodies Dynein arms Nexin links Radial spokes 7. Peroxisomes are specialized for _______ DNA replication Protein synthesis Transcription Free radical detoxification 8. Chromosomal aberrations include _______ Deletion Inversion Duplication All of these 9. The core structure of eukaryotic cilia and flagella is known as _______. Axoneme Microfilament Basal body Centrosome 10. Cell cycle progression is primarily regulated by which molecular system? Cyclins and cyclin-dependent kinases Histones Microtubules Ribosomes Heat shock proteins Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 24 Cell Biology Multiple Choice Questions