Proteins
Everything you need to know about proteins for WJEC AS level
- Created by: Cerys Edwards
- Created on: 19-05-13 16:47
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- Proteins
- Amino acid and a carboxyl group
- All contain Hydrogen, carbon, oxygen and nitrogen
- Most contain phosphorus and sulphur
- All contain Hydrogen, carbon, oxygen and nitrogen
- Secondary structure
- Hydrogen bonds formed between amino acids
- Coiled into helix
- Hydrogen bonds formed between amino acids
- Tertiary structure
- Further coils into 3D structure
- Maintained through ionic, disulphide and hydrogen bonds
- Quaternary structure
- Final 3D structure when 2 or more polypeptide chains join.
- Test for proteins
- Buiret test
- Turns violet if present
- Buiret test
- Amino acid and a carboxyl group
- Functions
- Proteins
- Amino acid and a carboxyl group
- All contain Hydrogen, carbon, oxygen and nitrogen
- Most contain phosphorus and sulphur
- All contain Hydrogen, carbon, oxygen and nitrogen
- Secondary structure
- Hydrogen bonds formed between amino acids
- Coiled into helix
- Hydrogen bonds formed between amino acids
- Tertiary structure
- Further coils into 3D structure
- Maintained through ionic, disulphide and hydrogen bonds
- Quaternary structure
- Final 3D structure when 2 or more polypeptide chains join.
- Test for proteins
- Buiret test
- Turns violet if present
- Buiret test
- Amino acid and a carboxyl group
- Enzymes
- Structural
- Proteins
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