Apoptosis Overview Quiz

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Questions and Answers

What is a primary function of apoptosis in cellular biology?

  • To clean up damaged cells (correct)
  • To increase metabolic rate
  • To promote rapid cell division
  • To enhance immune response

Which factor is least likely to trigger apoptosis in cells?

  • Excessive nutrient availability (correct)
  • DNA damage
  • Lack of oxygen
  • Growth factor deprivation

How do destructive free radicals influence cellular health?

  • They promote cell replication
  • They facilitate energy production
  • They can cause DNA damage leading to apoptosis (correct)
  • They enhance nutrient absorption

Which of the following conditions is most associated with the initiation of apoptosis?

<p>Nutrient deprivation (A)</p> Signup and view all the answers

What role does lack of oxygen play in cell survival?

<p>It can lead to cellular apoptosis (B)</p> Signup and view all the answers

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Study Notes

Apoptosis

  • Apoptosis is a process of programmed cell death.

  • Apoptosis is essential for maintaining tissue homeostasis and removing damaged or unnecessary cells.

  • Factors that can trigger apoptosis include:

    • Free radicals: Highly reactive molecules that can damage cellular components.
    • DNA damage: Alterations to the genetic material of a cell.
    • Growth factor deprivation: The absence of signals that promote cell growth and survival.
    • Lack of oxygen and nutrients: Conditions that can compromise cellular function and viability.

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