Proteins

Question 1

What is a disadvantage of proteins?

Answer 1

-may malfunction and result in disease,
Example;
Insulin hormone, caused diabetes

Question 2

How are protein based diseases corrected?

Answer 2

Corrected with protein based therapies, by replacing insulin

Question 3

Name 5 amino acid groups;

Answer 3

1)special
2)polar/non polar
3)charged/non charged
4)acids/bases
5)hydrologic/hydrophilic

Question 4

What is an amino acid?

Answer 4

An organic compound, contains a central carbon attached to a hydrogen, carboxyl and amino groups, as well as a side chain which is specific to each amino acid

Question 5

What do one or more peptides form?

Answer 5

A polypeptide

Question 6

Outline the main features of non-covalent bonding: (3)

Answer 6

-not electron share between atoms of a covalent bond

-a reaction is not involved to form the bond

-it is an interaction between atoms

Question 7

Name 4 types of non-covalent bonding:

Answer 7

(1)dipole-dipole interaction
(2)hydrogen bonding
(3)van der waals
(4)hydrophobicity

Question 8

Describe dipole-dipole interaction

Answer 8

Polar molecules can interact via permanent dipole-dipole interactions

Question 9

Describe hydrogen bonding

Answer 9

Polar molecules can interact via permanent dipole-dipole interactions

Question 10

Describe van der waals interactions

Answer 10

-polar
-non-polar -> even electron share
-> temporarily dipole

Question 11

Describe hydrophobocity

Answer 11

-polar side chains are hydrophilic (they like water)

-non-polar side chains are hydrophobic - don’t like water