2.4 Proteins
Essential Idea:
Proteins have a very wide range of functions in living organisms
Proteins have a very wide range of functions in living organisms
Understandings:
2.4.U1: Amino Acids are linked together by condensation to form polypeptides.
2.4.U2: There are 20 different amino acids in polypeptides synthesised on ribosomes
2.4.U3: Amino acids can be linked together in any sequence giving a huge range of possible polypeptides
2.4.U4: The amino acid sequence of polypeptides is coded for by genes
2.4.U5: A protein may consist of a single polypeptide or more than one polypeptide linked together
2.4.U6: The amino acid sequence determines the three-dimensional conformation of a protein
2.4.U7: Living organisms synthesise many different proteins with a wide range of functions
2.4.U8: Every individual has a unique proteome
Applications:
2.4.A1: Rubisco, insulin, immunoglobulins, rhodopsin, collagen and spider silk as examples of the range of protein functions
2.4.A2: Denaturation of proteins by heat or by deviation of pH from the optimum
Skills:
2.4.S1: Drawing molecular diagrams to show the formation of a peptide bond
2.4.U1: Amino Acids are linked together by condensation to form polypeptides.
2.4.U2: There are 20 different amino acids in polypeptides synthesised on ribosomes
2.4.U3: Amino acids can be linked together in any sequence giving a huge range of possible polypeptides
2.4.U4: The amino acid sequence of polypeptides is coded for by genes
2.4.U5: A protein may consist of a single polypeptide or more than one polypeptide linked together
2.4.U6: The amino acid sequence determines the three-dimensional conformation of a protein
2.4.U7: Living organisms synthesise many different proteins with a wide range of functions
2.4.U8: Every individual has a unique proteome
Applications:
2.4.A1: Rubisco, insulin, immunoglobulins, rhodopsin, collagen and spider silk as examples of the range of protein functions
2.4.A2: Denaturation of proteins by heat or by deviation of pH from the optimum
Skills:
2.4.S1: Drawing molecular diagrams to show the formation of a peptide bond