Overview of Lipid Biochemistry Flashcards
1
Q
Structure
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/339/406/q_image_thumb.gif?1659492595)
A
cholesterol
2
Q
Characteristics of cholesterol structure
A
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/341/894/a_image_thumb.png?1659439217)
3
Q
Structure?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/342/017/q_image_thumb.png?1659492598)
A
phospholipids
4
Q
Characteristics of phospholipid structure
A
- hydrophillic head
- fatty acid chains = hydrophobic
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/342/113/a_image_thumb.png?1659439217)
5
Q
Structure?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/342/257/q_image_thumb.png?1659492598)
A
fatty acid
6
Q
Characteristics of Fatty Acid Structure
A
- hydrocarbon chain
- saturated vs. unsaturated
- carboxyl group
![](https://s3.amazonaws.com/brainscape-prod/system/cm/119/342/274/a_image_thumb.png?1659439217)
7
Q
Chemical properties of lipids
A
- less polar than gluocse or amino acids
- not water soluble
8
Q
Fatty acids: chemical properties & sources
A
- Chem prop
- Most polar
- Sources
- Acetyl CoA → de novo lipogenesis
- Diet for essential fatty acids
- Sugars, AA’s, fats
9
Q
Phospholipids: chemical properties & sources
A
- Chem prop
- 2nd most polar
- Sources
- membranes
10
Q
Cholesterol: chemical properties & sources
A
- Chem prop
- 3rd most polar
- Sources
- Diet
- Synthesized from Acetyl CoA in liver
11
Q
Cholesterol ester: chemical properties & sources
A
- Chem prop
- not very polar
- Cholesterol ester = precursor to cholesterol
12
Q
Triglycerides: chemical properties & sources
A
- Chem prop
- non polar
13
Q
Fatty acids: General fxns
A
- Float in blood during exercise
- Major component of cell membranes
- Store calories
- Precursors for eicosanoids like prostaglandins, leukotrienes, thromboxanes
14
Q
Phospholipids: General fxns
A
form membranes
15
Q
Cholesterol: General fxns
A
- Cell membrane component
- precursor for steroid proteins
- bile acids