Answer:
b. promote growth and repair of the body.
Step-by-step explanation:
Proteins play a crucial role in promoting growth and repair of the body. They are involved in the synthesis and maintenance of tissues, including muscles, organs, and bones. Proteins provide the necessary building blocks for the growth and repair of cells, enabling the body to heal and regenerate damaged tissues. They are also involved in various metabolic processes and serve as enzymes, hormones, and antibodies, which are essential for proper bodily functions.
Option a, medium for temperature regulation, is not a direct function of proteins. Temperature regulation in the body is primarily controlled by mechanisms such as sweating and blood vessel dilation/constriction.
Option c, providing long-term energy storage, is not a primary function of proteins. Carbohydrates and fats are the main sources of long-term energy storage in the body.
Option d, providing essential fatty acids, is not a direct function of proteins. Essential fatty acids are specific types of fats that are necessary for various physiological processes, but they are not directly synthesized or provided by proteins.
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