Levels Of Protein Structure

Question 1

What are the 4 types of protein structure

Answer 1

Primary secondary tertiary and quaternary

Question 2

What does the primary structure contain

Answer 2

It only contains peptide bonds

Question 3

What is the primary structure

Answer 3

It is only the polypeptide chain

Question 4

What causes polypeptides to differ

Answer 4

The length order and type of amino acids

Question 5

What does the secondary structure contain

Answer 5

It contains folding of parts of the polypeptide chain

Question 6

What two structures form in the secondary structure

Answer 6

Alpha helix and beta pleated sheets

Question 7

What bonds form between the twists of the alpha helix

Answer 7

Hydrogen bonds

Question 8

What holds the shape of beta pleated sheets

Answer 8

Hydrogen bonds

Question 9

What are amino acids joined by

Answer 9

Peptide bonds

Question 10

What does the tertiary structure contain

Answer 10

It contains a 3 dimensional folding of the polypeptide chain

Question 11

What does the folding of the polypeptide chain form

Answer 11

It forms a compact spherical shape

Question 12

What do the bonds present form between

Answer 12

The Variable group of different amino acids

Question 13

What bonds in addition to peptide and hydrogen bonds does the tertiary structure contain

Answer 13

Disulphide bonds and ionic bonds

Question 14

Where do the disulphide bonds form

Answer 14

They form between R groups that contain sulphur

Question 15

Where do ionic bonds form

Answer 15

Between NH3 in one R group and COO- in the other R group

Question 16

Where do quaternary structures form

Answer 16

They only form in proteins that have two or more polypeptide chains such as insulin and haemoglobin

Question 17

What do the polypeptide chains form

Answer 17

They all form a tertiary structure in each chain