Arkansas State Barber Practice Exam

The energy needed for muscular effort is released during:

1. Photosynthesis

2. Digestion

3. Catabolism

4. Metabolism

The correct answer is: Catabolism

The energy needed for muscular effort is released during a process called catabolism, which involves the breakdown of complex molecules (such as glucose) into smaller, more usable forms (such as ATP). This process occurs in the cells of our body, specifically in the mitochondria. Photosynthesis (A) is the process by which plants convert sunlight into energy, and digestion (B) is the process by which our body breaks down food to extract nutrients. Metabolism (D), while closely related to catabolism, is a broader term that encompasses all of the chemical processes that occur in our body, including anabolism (the building up of complex molecules). Therefore, the most specific and accurate answer is catabolism (C).