Protein Functions in the Body

What is the main role of proteins in the body?

• Building muscle and body tissues

• Regulating blood glucose levels

• Maintaining fluid balance

• Transporting oxygen in the blood

• All the above

Which of the following is NOT a function of proteins?

• Acting as enzymes

• Serving as hormones

• Maintaining electrolyte balance

• Storing excess energy

What is the role of enzymes in the body?

• Transporting nutrients

• Maintaining pH balance

• Regulating hormone production

• Conducting specific chemical reactions

Which of the following is an example of a protein hormone?

• Insulin

• Glucose

• Melatonin

• Thyroid hormone

What do antibodies do in the immune system?

• Attack and destroy foreign substances

• Regulate enzyme activity

• Maintain fluid balance

• Promote wound healing

Which cells in the body have a high rate of regeneration?

• Heart-muscle cells

• Nerve cells

• Skin cells

• Intestinal cells

What happens when the body lacks sufficient protein intake?

• Fluid balance is disrupted

• Wound healing is slowed

• Blood pH becomes too acidic

• Energy production is enhanced