B.1 protein synthesis

Question 1

proteins

Answer 1

• made by reading the code in DNA

Question 2

DNA

Answer 2

• controls the production of proteins in a cell (PS)

- a section of DNA that codes for a particular protein is called a gene.

Question 3

amino acids

Answer 3

• chains of molecules called amino acids make up proteins.
• each different protein has its own particular number and order of amino acids.
• this gives each protein a different shape, which means proteins can have different functions. order of bases in a gene decides the order of amino acids.
• each amino acid is coded for by a sequence of three bases in the gene, called the triplet code.