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 5. Write the difference between :

            (b) Red and White muscles
 

Answers (1)

Red muscle fibre White muscle fibre
These are thin and smaller in size These are thick and larger
Due to the presence of myoglobin, they are red.                Due to the presence of only a small amount of myoglobin, they are white.
These carry out slow and sustained contractions These carry out fast contractions for shorter durations. 
They contain numerous mitochondria and release energy by aerobic respiration. They have less number of mitochondria and release energy by anaerobic respiration.

 

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Sonika

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