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