1. Proteins

2. Proteins
Proteins are complex macromolecules (polymers) made up of structural units (monomers) which are amino acids.

3. Proteins Amino acids are made up of:
1.a basic group- the amino group NH2 ,
2.an acidic group- carboxyl group COOH
(Those two groups are the functional groups in the amino acid),

4. Proteins Amino acids are made up of: 3.a hydrogen atom and
4.terminal group R which differs from an amino acid to another.

5. Proteins Amino acids and building of protein
Proteins are made up of repeated units of amino acids which link with each other by peptide bonds.

6. Proteins Amino acids and building of protein
these bonds are present between the carboxyl group of an amino acid with an amino group of another amino acid, with the removal of water due to this combination.

7. Proteins Amino acids and building of protein
these bonds are present between the carboxyl group of an amino acid with an amino group of another amino acid, with the removal of water due to this combination.

8. Proteins
Structure:

9. Proteins
Structure:
There are 20 different types of amino acids such as:
-Glycine -Alanine –Valine
The type of protein depends on:
• The number of amino acids
• The type of amino acids used
• The order of amino acids

10. Proteins
Importance
Structural
Functional

11. Proteins
Importance:
Structural importance:
cell membrane

12. Proteins
Importance:
Structural importance:
muscles

13. Proteins
Importance:
Structural importance:
ligaments, tendons

14. Proteins
Importance:
Structural importance:
Glands

15. Proteins
Importance:
Structural importance:
nails,hair (Keratine)

16. Proteins Importance: Structural importance:
Vital Fluids: blood and the lymph

17. Proteins
Importance:
Structural importance:
Bone growth

18. Proteins
Importance:
Structural importance:
Chromosomes

19. Proteins Importance: Structural importance: cell membrane
muscles, ligaments, tendons, organs, glands, nails,hair
blood and the lymph
Bone growth
Chromosomes

20. Proteins Importance: Functional importance:
enzymes and hormones which stimulate and regulate all the vital processes

21. Classification of proteins :
Simple proteins :
present in the leaves &roots of plants and human blood plasma.
Formed of amino acids ONLY
Such as : albumin

22. 2) Conjugated proteins *formed of amino acids and other elements *
Amino acids + Nucleic acids
Amino acids + phosphorus
Amino acids + Iodine
Chromatin *nucleic protein*
Amino acid + iron
Casein *phospho protein in Milk *
Thyroxin *secreted from thyroid gland *
Haemoglobin *inside red blood cells *