Multiple Choice
Which of the following is not a common headgroup of glycerophospholipids?
a) Ethanolamine.
b) Choline.
c) Serine.
d) Hydrogen atom
e) Threonine.
10. Lipids
Glycerophospholipids
Struggling with Biochemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Phosphatidate is a glycerophospholipid formed from:
a) Glycerol-3-phosphate and two fatty acid chains.
b) Glycerol-3-phosphate and two free fatty acids.
c) Glycerol and two fatty acid chains.
d) Pyruvate and triacylglycerol.
A
Glycerol-3-phosphate and two fatty acid chains.
B
Glycerol-3-phosphate and two free fatty acids.
C
Glycerol and two fatty acid chains.
D
Pyruvate and triacylglycerol.
Verified step by step guidance1
Understand the structure of phosphatidate: It is a glycerophospholipid, which means it is composed of a glycerol backbone, two fatty acid chains, and a phosphate group.
Identify the components needed to form phosphatidate: The glycerol backbone is provided by glycerol-3-phosphate, and the two fatty acid chains are attached to this backbone.
Consider the biochemical pathway: Glycerol-3-phosphate is a common intermediate in lipid metabolism, and it can be acylated by two fatty acids to form phosphatidate.
Evaluate the options: Option (a) 'Glycerol-3-phosphate and two fatty acid chains' correctly describes the formation of phosphatidate, as it involves the acylation of glycerol-3-phosphate with two fatty acids.
Eliminate incorrect options: Options (b), (c), and (d) do not accurately describe the formation of phosphatidate, as they either involve incorrect substrates or do not align with the known biochemical pathway.
Related Videos
Related Practice
Glycerophospholipids practice set
Problem sets built by lead tutorsExpert video explanations