What are some examples of proteins ?

This is a bit heavy reading for 7th grade BUT if you scroll through it you will be able to find a number of proteins listed.

proteins are structural materials, energy sources, and chemical messengers

Common protein rich foods can include: Milk, Soy Milk, Eggs, Cheese, Yogurt, Peanut Butter, Lean Meats, Fish, and Poultry

I didn't list the FOODS in which proteins could be found since the question was for examples of proteins. I assume the name was needed.

To find examples of proteins, you can start by understanding what proteins are. Proteins are large molecules made up of chains of amino acids. They play crucial roles in various biological processes in living organisms. Here are a few examples of proteins:

1. Hemoglobin: This protein is found in red blood cells and is responsible for carrying oxygen from the lungs to different parts of the body.

2. Insulin: Insulin is a hormone that regulates blood sugar levels. It is produced in the pancreas and helps to control glucose uptake by cells.

3. Collagen: Collagen is a structural protein that provides strength and elasticity to connective tissues, such as skin, tendons, and ligaments.

4. Enzymes: Enzymes are proteins that catalyze chemical reactions in the body. They speed up the rate of specific biochemical reactions without being consumed in the process.

5. Antibodies: Antibodies are proteins produced by the immune system in response to foreign substances called antigens. They help in recognizing and neutralizing pathogens.

6. Actin and Myosin: These proteins are involved in muscle contraction and movement.

7. Albumin: Albumin is a protein found in plasma, the liquid part of blood. It helps in maintaining blood pressure and transporting various substances like hormones and fatty acids.

8. Keratin: Keratin is a protein that forms structural components of hair, nails, and the outer layer of the skin.

These are just a few examples of the vast array of proteins found in living organisms. To explore more examples, you can refer to scientific databases, biology textbooks, or research articles related to proteins.