Biochemistry- Lipids

Question 1

What are lipids?

Answer 1

Fatty acids. There are 2 types. Saturated and unsaturated.

Question 2

What is a saturated fatty acid?

Answer 2

Carbon atoms are holding all of the hydrogen that is possible with no double bonds.
Plug up blood vessels.

Question 3

What is this
     H  H   H  H  H    O
      |   |     |    |    |    //
H- C-C- C- C -C-C
     |   |     |    |     |    \
    H H   H   H   H    OH

Answer 3

A saturated fatty acid.

Question 4

What is an unsaturated fatty acid?

Answer 4

Does not contain as many hydrogen as possible

Double bonds occur which allows movement so a liquid at room temperature. Ex. Olive oil

Question 5

What is this
     H  H   H  H  H    O
      |   |     |    |    |    //
H- C-C- C=C -C-C
     |   |                |    \
    H H              H  OH

Answer 5

Unsaturated fatty acid. Has a double bond.

Question 6

What is poly unsaturated fatty acid?

Answer 6

• Many double bonds
• Partially hydrogenated fats (saturated)
• trans fatty acids
  
  • synthetic
  • turns to gel in our blood vessels

Question 7

What is a neutral fat?

Answer 7

Composed of glycerol and 3 fatty acids. Joined through DEHYDRATION SYNTHESIS.

Question 8

What is this?
         H                        O
          |                         | |
   H - C - OH ..... HO - C - R
          |                         | |
   H - C - OH ..... HO - C - R
          |                         | |
   H - C - OH ..... HO - C - R
          |                         
         H

Answer 8

That is a neutral fat.

Question 9

What is a phospholipid?

Answer 9

• fatty acid containing phosphorous

- makes up cell membranes

Question 10

What is this?
O
| <- non polar tail- hydrophobic

Answer 10

A phospholipid.

Question 11

What is many phospholipids stacked on top of each other?

Answer 11

A phospholipid bilayer.