Apoptosis and Its Significance Practice Questions
20 free Apoptosis and Its Significance practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Apoptosis and Its Significance questions
- Q1. Which of the following describes the morphological hallmark of apoptosis that distinguishes it from necrosis?
- Q2. The 'intrinsic pathway' of apoptosis is primarily regulated by which organelle?
- Q3. Which family of proteins acts as the primary 'molecular switch' to either promote or inhibit apoptosis?
- Q4. During the execution phase of apoptosis, which enzymes are responsible for the deliberate proteolysis of cellular components?
- Q5. What is the biological significance of apoptosis during vertebrate limb development?
- Q6. The release of which molecule from the mitochondria is required to form the apoptosome in the cytosol?
- Q7. Which of the following best describes 'DNA laddering' observed in apoptotic cells?
- Q8. The extrinsic pathway of apoptosis is initiated by the binding of ligands to which type of receptors?
- Q9. Which phospholipid moves from the inner to the outer leaflet of the plasma membrane, acting as an 'eat-me' signal for phagocytes?
- Q10. In the context of cancer, how do mutations in the p53 gene typically affect apoptosis?
- Q11. Which of the following is considered an anti-apoptotic protein?
- Q12. What happens to the apoptotic bodies formed at the end of the apoptotic process?
- Q13. How does apoptosis contribute to the immune system's function?
- Q14. Which caspase is uniquely associated with the initiation of the extrinsic pathway?
- Q15. C. elegans was a critical model for studying apoptosis. Which gene in C. elegans is functionally homologous to the human Bcl-2?
- Q16. Which condition is associated with a 'failure' or inhibition of normal apoptosis?
- Q17. What is the role of IAPs (Inhibitor of Apoptosis Proteins) in the cell?
- Q18. Which of the following triggers would most likely activate the intrinsic apoptotic pathway?
- Q19. The cleavage of which structural protein by caspases leads to the characteristic 'blebbing' of the plasma membrane?
- Q20. What is the biological significance of apoptosis in the context of viral infections?