Item21pointsPrintReferencesItem 2Which of the following are major functions of proteins in the body? Check all that apply.Check All That ApplyIn clotting compounds in bloodIn clotting compounds in bloodTo make certain hormonesTo make certain hormonesAs components of harded structures, such as hair and nailsAs components of harded structures, such as hair and nailsAs part of bile, necessary for lipid digestion and absorptionAs part of bile, necessary for lipid digestion and absorptionTo enhance neural function and prevent dementiaTo enhance neural function and prevent dementiaAs compounds that help maintain fluid and pH balanceAs compounds that help maintain fluid and pH balanceTo build antibodies that fight disease organismsTo build antibodies that fight disease organisms

The major functions of proteins in the body include:

1. In clotting compounds in blood: Proteins such as fibrinogen and prothrombin play a crucial role in the clotting of blood. They help in the formation of a blood clot, which prevents excessive bleeding when a blood vessel is injured.

2. To make certain hormones: Proteins are involved in the creation of some hormones. For example, insulin, a hormone that regulates blood sugar levels, is a protein.

3. As components of hardened structures, such as hair and nails: Keratin, a type of protein, is a major component of hair, nails, and the outer layer of skin.

4. As part of bile, necessary for lipid digestion and absorption: Some proteins are used to make bile acids, which are critical for the digestion and absorption of dietary fats.

5. To enhance neural function and prevent dementia: While this is not a primary function of proteins, certain proteins do play roles in the brain and nervous system. However, it's not accurate to say that proteins generally enhance neural function and prevent dementia.

6. As compounds that help maintain fluid and pH balance: Proteins in our blood help maintain the body's fluid balance and pH level.

7. To build antibodies that fight disease organisms: Antibodies are proteins that the immune system uses to fight off bacteria, viruses, and other harmful invaders.