Mitochondria and Cellular Damage Quiz
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Questions and Answers

What is the approximate range of mitochondria per cell?

  • 100-500 mitochondria
  • More than 2000 mitochondria
  • Several hundred to 2000 mitochondria (correct)
  • 10-100 mitochondria

What happens to the copy number of mitochondria with aging or disease?

  • It decreases (correct)
  • It remains constant
  • It increases
  • It fluctuates unpredictably

Which process leads to the release of cytochrome c and subsequently apoptosis?

  • Increased ROS production (correct)
  • Defects in calcium buffering
  • Increased ATP production
  • DNA damage

What is the primary function of mitochondria in energy production with oxygen?

<p>Beta-oxidation of fatty acids and ATP production (B)</p> Signup and view all the answers

What is the consequence of defects in ATP production in mitochondria?

<p>Neuronal deficits due to lack of energy (C)</p> Signup and view all the answers

What is the approximate range of mitochondria per cell?

<p>Several hundred to 2000 (C)</p> Signup and view all the answers

What is the consequence of increased ROS production in mitochondria?

<p>Release of cytochrome c and subsequent apoptosis (A)</p> Signup and view all the answers

What is the primary function of mitochondrial DNA (mtDNA) replication?

<p>Independent of nuclear DNA replication (B)</p> Signup and view all the answers

What contributes to energy production in mitochondria with oxygen?

<p>Fatty acid oxidation and citrate cycle (C)</p> Signup and view all the answers

What is the outcome of defects in mitochondrial membrane potential?

<p>Impaired ATP production (B)</p> Signup and view all the answers

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