Proteins from amino acids Flashcards
What is a molecule consisting of two amino acids joined by a peptide bond called?
Dipeptide
What is a polypeptide?
More than two amino acids joined together by peptide bonds to form a chain
What is a protein?
One or more polypeptide chains
What kind of reaction is the formation of a peptide bond?
Condensation (a molecule of water is lost)
Where in a cell are polypeptides and proteins made?
On ribosomes.
What is the messenger molecule that takes the information from the DNA to the nucleus to the ribosomes for protein synthesis?
mRNA (messenger RNA)
What is the primary structure of a protein?
The sequence of amino acids in the polypeptide chain(s)
What kind of enzymes catalyse the breaking of peptide bonds, and so teh breakdown of proteins?
Protease enzymes.