Question

cells make proteins to carry out many different processes in the body. some proteins are enzymes. an enzyme is a catalyst, or a substance that speeds up chemical reactions. some proteins are hormones. hormones regulate growth, metabolism, development, and reproduction in organisms. other proteins help transport molecules, contract muscles, defend the body against pathogens, and provide structural support for tissues.
the table below shows the function of several different proteins.
hemoglobin: carries oxygen from the lungs to other cells in the body
salivary amylase: helps break down amylose, a type of starch, into glucose
insulin: regulates blood glucose levels
collagen: provides structural support for skin, blood vessels, and muscles
complete the sentence.
collagen hemoglobin insulin salivary amylase
the protein is a hormone, and is an enzyme. the protein transports molecules, and provides structural support.

Explanation:

• Insulin is a hormone as it regulates blood glucose levels (a hormonal function).
• Salivary amylase is an enzyme as it helps break down starch (a catalytic, enzymatic function).
• Hemoglobin transports oxygen molecules (a transport - related protein function).
• Collagen provides structural support (a structural - related protein function).

Answer:

The protein insulin is a hormone, and salivary amylase is an enzyme. The protein hemoglobin transports molecules, and collagen provides structural support.