R-group

Question 1

Where is the R-group located?

Answer 1

-Find the alpha carbon

-The R-group is connected to the alpha carbon

Question 2

Properties of R-group - describe

Answer 2

R-group:
1)non-polar

2)uncharged

3)it contains an aromatic ring

4)The R-group confers special characteristics to the amino acid

Question 3

Cysteine can form disulphide bond
(Cysteine - R group)

Answer 3

1)Cysteine contains a thiol functional group on its side chain (R-group)

2)Symbol for thiol is (-SH)

3)The -SH group is polar

Question 4

Cystine can form disulphide bond
(Formation)

Answer 4

1)The thiol on one cysteine and a thiol on another cysteine can react to form a disulphide bond

2)Disulphide bonds are imporant in maintaing the structure of proteins