Unit 1 Lipids

Question 1

What are triglycerides?

Answer 1

-Monomers

-Triglycerides = glycerol + 3 fatty acids

-bond is ether through dehydration synthesis

Question 2

What are Phosphalides?

Answer 2

-Phosphalide group = 2 fatty acids + glycerol

-creates polar head + non polar head

-createds bilayer (polar head outside, non-polar head inside)

Question 3

What is wax?

Answer 3

-wax = 1 fatty acid + long carbon and hydrogen

-hydrophobic

Question 4

What are steroids?

Answer 4

-4 ring structure

Ex.
-Cholesterol: membrane fluid
-sex hormones; sexual traits
-cortisol: moves bile
-steroid hormones: growth + development

Question 5

Saturated vs Unsaturated fat

Answer 5

1. Saturated:
   -max # of H
   -Single bond to C
   -solid at room temperature
   -ex animal fat
2. Unsaturated:
   -unlimited # of H
   -double bonds to C
   -liquid at room temp

Question 6

monosaturated vs polysaturated fat

Answer 6

3. monosaturated:
   -unSaturated fat
   -1 double C bond
4. polysaturated
   -unSaturated fat
   -2+ double C bonds

Question 7

Trans vs cis fat

Answer 7

5. Trans:
   -unsaturated fat
   -H are on opposite sides to stack easier
6. Cis:
   -unsaturated fat
   -H on same side so stacking harder