Muscles are red because of the presence of

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(A) The red color of certain muscle fibers,known as red muscle fibers,is primarily due to the presence of a high concentration of $Myoglobin$. $Myoglo

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Myoglobin and mitochondria

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(A) The red color of certain muscle fibers,known as red muscle fibers,is primarily due to the presence of a high concentration of $Myoglobin$. $Myoglobin$ is an iron-containing pigment similar to $Haemoglobin$,which stores oxygen in the muscle cells. Additionally,these muscle fibers contain a large number of $Mitochondria$,which utilize the stored oxygen for aerobic respiration to produce energy. Therefore,the combination of $Myoglobin$ and $Mitochondria$ gives these muscles their characteristic red appearance.

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