Unit 2

Question 1

H-bond

Answer 1

Long & weak bonds that result in unique properties

Formed between H and electronegative atoms that have unshared electrons

Question 2

Hydrophilic

Answer 2

Accepts water
Charged or polar (like water) and dissolves in water
Ex: salt

Question 3

Hydrophobic

Answer 3

Repels water
Will not mix in water - forms layers
Ex: oil

Question 4

Amphipathic

Answer 4

Molecules that contain a hydrophobic and hydrophilic region

Ex. Phosphatidylcholine

Question 5

Micelle

Answer 5

Oriented in a way to where the hydrophobic regions are together and away from water.
The hydrophilic heads are oriented toward the water.

Question 6

Hydrophobic interactions

Answer 6

Play an important role in folding of proteins and hormone receptor

Very important in ligand binding

Question 7

Van der Waals interactions

Answer 7

Weak individually
Easily broken & reversible
Universal (occur between any 2 atoms that are near each other)