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Mitochondrial Dysfunction and Telomere Attrition

by Georgina Cornwall, PhD
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    About the Lecture

    The lecture Mitochondrial Dysfunction and Telomere Attrition by Georgina Cornwall, PhD is from the course Aging. It contains the following chapters:

    • Mitochondrial dysfunction
    • Telomere attrition

    Included Quiz Questions

    1. The number of times a human cell can divide
    2. The duration of telomerase activity within a cell
    3. The number of mitochondria in a cell
    4. The limit of free radicals a cell can endure before incurring damage
    5. The process of telomere lengthening as cells divide
    1. The more we consume, the more aged our cells become.
    2. The more cell respiration that occurs, the less likely it is to have mitochondrial DNA damage.
    3. The more active the mitochondria are in cellular metabolism, the less likely they are to suffer from accumulation of reactive oxygen species.
    4. The less we eat, the more free radicals we produce.
    5. The less the mitochondria are active in the cell, the longer the cell survives.
    1. Telomeres shorten as cells go through divisions, thus resulting in a limited number of times a normal somatic cell can divide before incurring chromosomal damage.
    2. Telomeric attrition is the abnormal process that causes cancer cells the ability to over-replicate.
    3. Telomere attrition is an abnormal condition of somatic cells.
    4. Telomere attrition is the normal process that allows cells to divide infinitely without damage to its genetic material.
    5. Telomere attrition is the normal process that protects a cell from aging.

    Author of lecture Mitochondrial Dysfunction and Telomere Attrition

     Georgina Cornwall, PhD

    Georgina Cornwall, PhD


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