Which of the following nutrients is a primary source of energy in metabolism?
A
Minerals
B
Carbohydrates
C
Vitamins
D
Water
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1
Understand the role of nutrients in metabolism: Metabolism involves chemical reactions that convert food into energy. Different nutrients play distinct roles in this process.
Identify the types of nutrients: The main categories of nutrients include carbohydrates, proteins, fats, vitamins, minerals, and water.
Focus on energy-providing nutrients: Carbohydrates, proteins, and fats are the primary nutrients that provide energy. Carbohydrates are often the body's preferred source of energy.
Explain why carbohydrates are a primary energy source: Carbohydrates are broken down into glucose, which is used in cellular respiration to produce ATP, the energy currency of the cell.
Consider the other options: Minerals, vitamins, and water do not directly provide energy but are essential for various metabolic processes and maintaining homeostasis.