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Because some cells are bigger and hungrier :D The number of mitochondria a cell contains depends on how much energy the cell needs to produce. Muscle cells for example, contain more number of mitochondria compared to kidney cells. In addition, the number of mitochondria in a cell is not a constant. It varies depending on the physical activity of an individual. To give you an example, it has been observed that marathon runners have more number of mitochondria in their leg muscle cells than people with desk jobs.

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16y ago
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11y ago

There may be some leakage of the high energy electrons in the respiratory chain to form reactive oxygen species, this will cause the mitochondria (which creates energy for the cell) to be different in the cells of older people. The mitochondria generates energy for the cell, so as you age there may be some leakage of the energy that the mitochondria generates.

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navitha blogger

Lvl 4
3y ago

Aging is associated with progressive mitochondrial dysfunction that occurs due to the accumulation of mitochondrial DNA (mtDNA) mutations and increased reactive oxygen species (ROS) production that causes oxidative damage to cellular macromolecules.

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Q: Why does it makes sense that mitochondria might be different in the cells of older people?
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Related questions

What does mitochondria do for cells?

Makes and stores energy.


What organelle makes energy for all cells?

The mitochondria. In plant cells the chloroplast makes energy also.


What function do mitochondria preform?

Mitochondria, an organelle in eukaryotic cells makes the cells main energy source ATP. Basically the Mitochondria are the powrhouses of a cell that keep it running.


What cell produce most of the cell energy?

Mitochondria or mitochondrion


What do mitochondria do in a amimal cell?

It's a very important organelle in cells because the mitochondria is what makes the energy for the cell. :D


What supplies energy to all cells?

Mitochondria makes the energy and the cytoplasm transports it throughout the cell


Which part of the plant and animal cells produces energy?

The mitochondria is what produces energy. It makes it ATP.


How can white cells tell your cells from foreign?

it isn't the cells that make peoples races different it is there DNA that makes people black or white


What structure in animals and plant cells releases energy from food and makes it available for cell activities?

The mitochondria.


How is most of the ATP produced in cell respiration what exactly makes it happen?

Oxidative phosphorylation in the mitochondria in cells


What do pant cells do?

Plant cells make energy for the cell and makes sugars that feed the plant to do it! This sections has to do somthing with a certain part that is called the mitochondria..


Which organelle is the power plant of the cell?

The mitochondria ( Singular: Mitochondrion) is often called a cells power plant. This is because it makes the cells energy.