Lipid and Lipid Metabolism [Biochemistry]

Lipids are

• organic compound

• inorganic compound

The followings are the functions and role of lipids in living organism:

• Thermal insulator

• Thermal conductor

• Act as cushion for internal organs

• Structural element of cell membrane

Lipids are X while carbohydrates are Y. What is X and Y?

• X is soluble

• X is insoluble

• Y is soluble

• Y is insoluble

Lipids contain more energy per gram than carbohydrates. True or false?

• True

• False, lipid contains equal amount of energy per gram as carbohydrates.

• False, lipid contains less the amount of energy per gram as carbohydrates.

What is the main significance of fatty acid oxidation?

Enzyme A catalyse hydrolysis of bonds between fatty acid and the rest of triacylglycerols . What is enzyme A?

• Carnetin Palmitoyl Transferase 1

• Carnetin Palmitoyl Transferase 2

• Lipase

• Acetyl-CoA

This type of fatty acids consist of ALL carbon-carbon single bonds. Which fatty acid is the statement referring to?

• Unsaturated fatty acids

• Saturated fatty acids

What is the main difference of saturated and unsaturated fatty acids?

Which of the following lipoprotein has the lowest density?

• VLDL

• LDL

• HDL

• Chylomicron

What is the rate-limiting step in beta oxidation of fatty acids?

• Formation of fatty acyl-carnitine

• Formation of fatty acetyl-CoA