Biology · Cell Structure and Function
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Lecithin contains _______.
- A
Ethanolamine
- B
Choline
- C
Serine
- D
Betaine
Lecithin is a phospholipid which consists of glycerol, two fatty acids, a phosphate group and choline. Choline is the only one in the options so the answer is B.
Ethanolamine is a compound belonging to the class of organic compounds known as ethanolamines. It is an amine compound that has two hydroxyl groups and one amino group attached to a three-carbon chain. Ethanolamine is not typically found in lecithin.
The correct answer is b) Choline. Lecithin is a phospholipid that contains choline as its head group. Choline is an essential nutrient and is crucial for the formation and structure of cell membranes.
Serine is an amino acid and is not a component of lecithin. However, serine is a part of other phospholipids found in cell membranes.
Betaine is a derivative of the amino acid glycine and is not a component of lecithin.
Tagged under Biology · Cell Structure and Function · 2021