Protien Structure

Question 1

What defines a primary protein?

Answer 1

It’s a series of amino acids (Words only)

Question 2

What defines a secondary protein?

Answer 2

It is the arrangement of amino acids (shapes)

Question 3

What defines a tertiary protein?

Answer 3

It showcases 3-dimensional folding

Question 4

What defines a quaternary protein?

Answer 4

It combines multiple polypeptides into a protein

Question 5

What type of bonding can be found in primary proteins?

Answer 5

Covalent bonds (Peptide and Disulfide bonds)

Question 6

What type of bonding can be found in secondary proteins?

Answer 6

Hydrogen bonds

Question 7

What type of bonding can be found in Tertiary proteins?

Answer 7

Hydrogen bonds
Disulfide bonds
Salt bridges

Question 8

What are the two most common types of secondary proteins?

Answer 8

Alpha helixes and beta pleated sheets

Question 9

What are the keynotes of alpha helixes?

Answer 9

They are spiral configurations of polypeptides bonded together by hydrogen bonds between coils
Showcases intramolecular bonding
Prefers Ala, Glu, Leu, Met

Question 10

What are the keynotes of beta pleated sheets?

Answer 10

They are two adjacent polypeptide sheets connected by hydrogen bonds
They can be parallel or antiparallel (Anti is stronger and more stable)
Showcases intermolecular bonding
Cannot exist as a single chain

Question 11

Which amino acids don’t work well in Alpha helixes and are usually placed on turns for beta-pleated sheets?

Answer 11

Proline (weird shape)
Glycine (too small)