Write "True" or "False".
Red muscles are slow acting while white muscles are fast acting.

Answer

**Step-by-Step Solution:**

1. **Understanding Muscle Types**: There are two main types of skeletal muscles: red muscles and white muscles. Each type has distinct characteristics and functions.

2. **Characteristics of Red Muscles**:
- Red muscles are rich in myoglobin and mitochondria, which gives them a red appearance.
- They are dense with capillaries, allowing for better oxygen supply.
- Red muscles are known to be slow-twitch fibers, meaning they contract slowly and are more endurance-oriented.
- They produce less power but can sustain activity for longer periods.

3. **Characteristics of White Muscles**:
- White muscles have fewer mitochondria and myoglobin, resulting in a lighter appearance.
- They are fast-twitch fibers, meaning they contract quickly and are suited for short bursts of power.
- White muscles can generate a lot of energy quickly but fatigue faster than red muscles.

4. **Conclusion**: The statement in the question claims that "Red muscles are slow acting while white muscles are fast acting." Based on the characteristics discussed, this statement is true.

**Final Answer**: True

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