For our bodies to move, our muscle cells need a supply of energy. Why do you think a swimmer eats this meal before exercising?

Question

A
To decrease blood flow to muscle cells

B
To provide extra oxygen to muscle cells

C
To increase muscle stiffness to prevent injury

D
To provide muscle cells with energy from food

Answer 1

The correct answer is:

D - To provide muscle cells with energy from food

Before exercising, a swimmer (or any athlete) eats a meal to ensure that their muscle cells have a sufficient supply of energy. This energy is necessary for optimal performance during physical activity. The body primarily converts carbohydrates, fats, and proteins from food into usable energy (ATP) during exercise.