Which of the following materials are part of a person's body composition?

• A. Cellulose
• B. Minerals
• C. Water
• D. Proteins

Answer: (D)

Verified step by step guidance

1. Step 1: Begin by understanding the concept of body composition, which refers to the substances that make up the human body, including water, minerals, proteins, fats, and carbohydrates.
2. Step 2: Evaluate each material listed in the problem to determine if it is part of the human body composition. For example, cellulose is a carbohydrate found in plants and is not digestible by humans, so it is not part of human body composition.
3. Step 3: Recognize that minerals are essential components of the human body, contributing to bone structure, enzyme function, and other physiological processes.
4. Step 4: Understand that water is a major component of the human body, making up approximately 60% of total body weight and playing a critical role in maintaining homeostasis and cellular function.
5. Step 5: Identify proteins as another key component of body composition, as they are involved in building and repairing tissues, enzyme production, and various metabolic processes.