Proteins

Question 1

General Formula for amino acids

Answer 1

NH2 (amino group)
COOH (carboxyl group)
R (variable group)
H + C

Question 2

what are proteins

Answer 2

Polymers of amino acids (polypeptides)

Question 3

how many different types of amino acids are there

Answer 3

20

Question 4

what does the r group represent in an amino acid?

Answer 4

it represents a variable group as it can be replaced by any of the 20 amino acids

Question 5

what is in the Primary level of protein structure:

Answer 5

The order and sequence of the amino acid chain (polypeptide) and peptide bonds

Question 6

what is in the Secondary level of protein structure:

Answer 6

Alpha Helices, Beta pleated sheets. Hydrogen Bonds

Question 7

what is in the Tertiary level of protein structure:

Answer 7

Further Folding of the polypeptide chain, with disulphide bridges, Ionic bonds, hydrogen bonds because of hydrophobic interactions

Question 8

what is in the Quaternary level of protein structure:

Answer 8

More than one polypeptide chains linked together to form one unit

Question 9

What is the 3d structure of the molecule affected by, and what else can this affect?

Answer 9

the bonding within the protein, and it can also affect the function of the cell