Distinguish between red muscle fibers and white muscle fibers.

Explanation

a) Red muscle fibres : Myoglobin of these fibres is high which give a reddish appearance. Such muscle fibres are called red fibres. They also contain plenty of mitochondria
b) White muscle fibres: Some of the muscle fibres possess very less quantity of myoglobin in their muscle fibres and there fore appear pale or whitish. Hence called white muscle fibres