Biochemistry-Lipid metabolism

Biochemistry

Lipid Metabolism




Compiled By Simon Mwangi
Edition: 2024/25

, Science | Biochemistry I of V pages
1. What are the different types of lipids?
Fatty acids
Triglycerides
Cholesterol
Phospholipids
Steroids
Glycolipids

2. What males a triglyceride?
3 FAs and 1 Glycerol

3. Name the different types of lipoproteins
Chylomicrons
VLDL
IDL (intermediate density)
LDL (low density)
HDL

4. What are the largest lipoproteins?
Chylomicrons

5. What are the smallest lipoproteins?
HDL

6. What are the functions of apolipoproteins?
Where are they found?
Found in lipoproteins

Bind lipids
Act as surface receptors
Co-factors for enzymes

7. How are fatty acids absorbed in the GI tract?
Converted to fatty acids
- Packaged into chylomicrons by intestinal cells

8. What is cholesterol converted into in the enterocytes?
Cholesteryl esters

9. What converts cholesterol into cholesterol esters in the enterocytes?
Acyl-CoA cholesterol acyltransferase (ACAT)

10. What are Cholesteryl esters packaged into to enter the lymph?
Chylomicrons

11. What does ACAT add to the cholesterol to create a cholesteryl ester?
Fatty acid


Biochemistry 2024/25 Edition