Protein
- Created by: Vivian
- Created on: 16-03-15 05:35
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- Proteins
- Structure
- Secondary-The amino acids in a polypeptide possess both Amino acid 1
- Quarternary-A combination of different polypeptide chains and prosthetic groups into a large complex protein molecule
- Primary-A chain of amino acids is called a polypeptide. This chain forms the primary structure of any protein.
- Molecular shape
- Fibrous proteins eg.Collagen-structural functions
- Globular proteins eg.Enzymes and Haemoglobin-metabolic functions
- Biuret test-Reliable test for protein that detects peptide links.
- 2.Add 0.05% copper (II) sulfate solution and mix gently.
- 3.A purple colour means peptide bond are present and subsequently proteins.If not the solution will remain blue.
- 1.At room temperature, add sodium hydroxide solution to the sample to be tested in the test tube
- 2.Add 0.05% copper (II) sulfate solution and mix gently.
- Bonds
- Immunity
- Enzymes-A protein that acts as a catalyst altering the speed of a biochemical reaction
- Proteases, Lipases, Carbohydrases all partake in chemical digestion.
- Structure
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