What is the typical composition of muscle tissue?

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Multiple Choice

What is the typical composition of muscle tissue?

Muscle tissue is mostly water, with a substantial protein component and a smaller amount of other substances. In skeletal muscle, about 75% of the weight is water, around 20% is protein (the main contractile proteins actin and myosin), and roughly 5% is other substances such as glycogen, minerals, and lipids. So the composition 20% protein, 75% water, 5% other is the best match. The other options misstate the balance by placing too much or too little protein relative to water, which doesn’t reflect how muscle tissue is structured. This high water content also helps explain why muscle feels pliable and responds to massage and skincare treatments.

Muscle tissue is mostly water, with a substantial protein component and a smaller amount of other substances. In skeletal muscle, about 75% of the weight is water, around 20% is protein (the main contractile proteins actin and myosin), and roughly 5% is other substances such as glycogen, minerals, and lipids. So the composition 20% protein, 75% water, 5% other is the best match. The other options misstate the balance by placing too much or too little protein relative to water, which doesn’t reflect how muscle tissue is structured. This high water content also helps explain why muscle feels pliable and responds to massage and skincare treatments.

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