<h2>Protein Classes</h2>
Explanation:
1. Hemoglobin carries oxygen in the blood
Class: Transport or carrier protein. Function: Carries molecules from one part to another in the body; like hemoglobin carries oxygen in the blood and transports to different parts of the body.
2. A protein in muscle cells enables them to move
Class: Contractile protein. Function: Facilitates muscle contraction and relaxation for movement; actin and myosin present in muscle cells which enables them to move.
3. Antibodies fight disease-causing bacteria
Class: Defensive protein. Function: Specialized in defending and protecting the body against antigens which are the pathogenic foreign invaders; like the disease-causing bacteria, viruses, fungi, protozoa, etc.
4. Collagen gives bone strength and flexibility
Class: Structural protein. Function: Provides structural framework, support, strength, flexibility, as well as protection to different parts of the body; like collagen, elastin, keratin.
5. Insulin signals cells to take in and use sugar.
Class: Hormonal/messenger/signal proteins. Function: Messenger proteins in the form of hormones which helps the body to coordinate a number of activities; like insulin signals cells to take in and use sugar during glucose metabolism.
6. Proteins in seeds provide food for plant embryos.
Class: Storage proteins. Function: Act as biological reserve which stores nutrients; like casein in milk, ferritin in hemoglobin, albumin in egg white, and proteins in seeds that provide food for plant embryos.
7. A protein called sucrase promotes the chemical conversion of sucrose into monosaccharides
Class: Enzyme protein. Function: Acts as a catalyst to promote and accelerate biochemical reactions of the body by acting as a catalyst; like sucrase promotes the chemical conversion of sucrose
