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MCQ on Apoptosis

By
Sourav Bio

Apoptosis is a type of programmed cell death that occurs naturally as part of normal development, tissue maintenance, and immune system function. It is a tightly regulated and orderly process that involves the activation of specific genes and signaling pathways to initiate the dismantling of the cell’s components, without causing damage to surrounding tissues. Apoptosis helps to eliminate unwanted, damaged, or infected cells, and plays an important role in many biological processes, including embryonic development, tissue remodeling, and the immune response.

1. What is apoptosis?

a) A type of cell growth b) A type of cell death c) A type of cell division d) A type of cell communication

Answer: b) A type of cell death

2. What triggers apoptosis?

a) DNA damage b) Cell stress c) Developmental signals d) All of the above

Answer: d) All of the above

3. What is the main function of apoptosis?

a) To promote cell growth b) To eliminate damaged or unwanted cells c) To divide cells into new ones d) None of the above

Answer: b) To eliminate damaged or unwanted cells

4. What distinguishes apoptosis from necrosis?

a) The controlled and orderly nature of apoptosis b) The involvement of inflammation in necrosis c) The destruction of cellular structures in necrosis d) None of the above

Answer: a) The controlled and orderly nature of apoptosis

5. What are the main steps of the apoptotic process?

a) Initiation, signaling, and execution b) Division, duplication, and differentiation c) Inflammation, infection, and destruction d) None of the above

Answer: a) Initiation, signaling, and execution

6. What is the role of caspases in apoptosis?

a) To trigger the apoptotic process b) To inhibit the apoptotic process c) To promote cell growth d) None of the above

Answer: a) To trigger the apoptotic process

7. What is the role of mitochondria in apoptosis?

a) To promote cell growth b) To produce ATP c) To regulate apoptosis through the release of pro-apoptotic factors d) None of the above

Answer: c) To regulate apoptosis through the release of pro-apoptotic factors

8. What is an example of a disease associated with abnormal apoptosis?

a) Cancer b) Parkinson’s disease c) Alzheimer’s disease d) All of the above

Answer: d) All of the above

9. What is the relationship between apoptosis and cancer?

a) Apoptosis can prevent the development of cancer by eliminating damaged cells b) Cancer cells can evade apoptosis, allowing them to grow and divide uncontrollably c) Both a and b d) None of the above

Answer: c) Both a and b

10. How can researchers study apoptosis?

a) By measuring levels of apoptotic markers b) By observing apoptotic cells under a microscope c) By manipulating genes involved in apoptosis d) All of the above

Answer: d) All of the above

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