Multiple Choice
Phosphatidate is a glycerophospholipid formed from:
10. Lipids
Glycerophospholipids
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A certain glycerophospholipid is made of glycerol, two fatty acids, and ethanolamine. What components does the carboxylic ester linkage connect?
A
Phosphate and ethanolamine.
B
Glycerol and fatty acids.
C
Fatty acids and phosphate.
D
Glycerol and ethanolamine.
E
There are no ester linkages is the glycerophospholipid.
Verified step by step guidance1
Understand the structure of a glycerophospholipid: It consists of a glycerol backbone, two fatty acids, a phosphate group, and an alcohol group such as ethanolamine.
Identify the ester linkage: In glycerophospholipids, ester linkages are formed between the hydroxyl groups of glycerol and the carboxyl groups of fatty acids.
Recognize the role of glycerol: Glycerol has three hydroxyl groups, two of which form ester bonds with the carboxyl groups of the fatty acids.
Clarify the connection: The ester linkage specifically connects the glycerol backbone to the fatty acids, forming the hydrophobic tail of the glycerophospholipid.
Conclude the correct answer: Based on the structure, the carboxylic ester linkage connects glycerol and fatty acids.
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Glycerophospholipids practice set
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