How is protein used by the body? Select all the possible metabolic fates of protein from the options below.

Options:

Production of fatty acids

Synthesis and repair of muscle tissue

Production of ATP

Synthesis of glucose

1. Synthesis and repair of muscle tissue

2. Production of ATP

3. Synthesis of glucose

Explanation:

Proteins are primarily used for tissue repairs and synthesis. They are polymers of amino acids used to make hormones, enzymes and other chemicals of the body. Therefore proteins are only reserved for synthesis and repairs of tissues.

During extreme starvation periods when then is no source of carbohydrates and adipose tissues has been depleted/used up, proteins are alternatively used as source of energy in form of amino acids that enters the liver. Tissues such as muscles are protein degraded to provide the brain with energy in form of ketone bodies and glucose, thus the weight loss in people suffering from malnutrition.