Secondary Structure

Question 1

Define the secondary structure

Answer 1

Folding of protein chains due to hydrogen bonds forming between amino acids

Question 2

What cause chain of proteins to fold

Answer 2

C=O has a negative charge which is attracted to the N-H group which have a positive charge which readily form hydrogen bonds which intern cause the protein chain to fold.

Question 3

What 2 arrangements are caused by the coiling/folding of protein chains

Answer 3

Alpha helix and beta pleated sheets

Question 4

Describe the structure of beta pleated sheets

Answer 4

Run parallel to each other and fold over each over

Question 5

What is a function of beta pleated sheets

Answer 5

Provides flexibility

Question 6

Describe the structure of alpha helix

Answer 6

It’s the coiling of a polypeptide chains and is maintained by hydrogen bonds at each polypeptide link

Question 7

What is the function of alpha helix

Answer 7

Provide strength