Question

When comparing skeletal muscle tissue from a 20 year male to an 85 year old male under the microscope, what would you expect to find?

Check All That Apply

fewer muscle cells in the 85 year old tissue sample

smaller muscle cells in the 85 year old tissue sample

longer muscle fibers in the 85 year old tissue sample

sample more mitochondria in the 20 year old tissue sample

Answer 1

This is a well known fact that with ageing the muscle mass and strength declines

There are more qualitative degradation in muscles as compared to quantitative

mitochondria being the energy house of cell suffers major changes with ageing

There is definitely

a) Decrease in number of mitochondria with ageing

b) increased mutation in mitochondrial DNA

c) a decline in the potency of mitochondrial enzymes

thus answer is

sample more mitochondria in the 20 year old tissue sample