3.3 Proteins

Question 1

Similarities in amino acid structures

Answer 1

They all have amino acids and have polypeptides.

Question 2

Differences in amino acid structures

Answer 2

They are different side “r” groups.

Question 3

Four levels of protein structure

Answer 3

Primary, Seondary, Tertiary, Quaternary

Question 4

Protein Denaturation

Answer 4

Conditions that disrupts hydrogen bonds and ionic bonds which unfolds a protein

Question 5

Hydrophobic interactions

Answer 5

Clump up in the middle to stay away from the water on the outside

Question 6

Hydrophilic interactions

Answer 6

Forms hydrogen bonds with themselves or H2O

Question 7

Acidic and Basic side chains

Answer 7

Attract each other because of opposite charges

Question 8

Cystein side chains

Answer 8

Form covalent bonds with each other

Question 9

Why and how would the structure and function of a protein change if a hydrophobic amino acid was substituted for a hydrophilic one?

Answer 9

The hydrophilic amino acid would move to the outside of the structure because it wants to form bonds with the water.