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