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Questions and Answers
What is the approximate number of mitochondria per cell?
What is the source of energy production in mitochondria?
What happens to mitochondrial DNA copy number with aging or disease?
What is the consequence of defects in ATP production in mitochondria?
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What is the primary function of mitochondria in a cell?
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Study Notes
Mitochondria Structure and Function
- The approximate number of mitochondria per cell varies, but it can range from 100 to 1,000, depending on the cell type and energy demands.
Energy Production in Mitochondria
- The source of energy production in mitochondria is oxidative phosphorylation, where cells convert glucose into ATP (adenosine triphosphate) through cellular respiration.
- Mitochondria are often referred to as the "powerhouses" of the cell because they generate most of the energy that the cell needs to function.
Mitochondrial DNA and Aging/Disease
- Mitochondrial DNA copy number tends to decrease with aging or disease, leading to impaired mitochondrial function and energy production.
Consequences of ATP Production Defects
- Defects in ATP production in mitochondria can lead to cellular energy deficiency, which can cause a wide range of diseases, including neurodegenerative disorders, metabolic disorders, and cancer.
Primary Function of Mitochondria
- The primary function of mitochondria in a cell is to generate energy for the cell through the production of ATP, which is essential for various cellular processes, such as muscle contraction, nerve impulses, and cell division.
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Description
Test your knowledge about mitochondria, their structure, function, and the types of damage they can sustain such as increased ROS production and DNA damage.
