Concept explainers
(a)
Interpretation: The building blocks which represents the glycerol residues in the given block diagram of glycerophospholipid have to be predicted.
Concept introduction: The lipids based on glycerol are called glycerophospholipids. They are basically made up of two fatty acids, a phosphate group which is esterified to glycerol and an alcohol group which is esterified to the phosphate group.
There are four ester linkages present in glycerophospholipid. The alcohol esterified to the phosphate group is an amino alcohol. The amino alcohol can be choline, ethanolamine, or serine that belongs to phosphatidylcholines, phosphatidylethanolamines and phosphatidylserines, respectively.
(b)
Interpretation: The building blocks which represents the phosphate residues in the given block diagram of glycerophospholipid have to be predicted.
Concept introduction: The lipids based on glycerol are called glycerophospholipids. They are basically made up of two fatty acids, a phosphate group which is esterified to glycerol and an alcohol group which is esterified to the phosphate group.
There are four ester linkages present in glycerophospholipid. The alcohol esterified to the phosphate group is an amino alcohol. The amino alcohol can be choline, ethanolamine, or serine that belongs to phosphatidylcholines, phosphatidylethanolamines and phosphatidylserines, respectively.
(c)
Interpretation: The linkages which involve an alcohol residue in the given block diagram of glycerophospholipid have to be predicted.
Concept introduction: The lipids based on glycerol are called glycerophospholipids. They are basically made up of two fatty acids, a phosphate group which is esterified to glycerol and an alcohol group which is esterified to the phosphate group.
There are four ester linkages present in glycerophospholipid. The alcohol esterified to the phosphate group is an amino alcohol. The amino alcohol can be choline, ethanolamine, or serine that belongs to phosphatidylcholines, phosphatidylethanolamines and phosphatidylserines, respectively.
(d)
Interpretation: The linkages which involve both glycerol and fatty acid residues in the given block diagram of glycerophospholipid have to be predicted.
Concept introduction: The lipids based on glycerol are called glycerophospholipids. They are basically made up of two fatty acids, a phosphate group which is esterified to glycerol and an alcohol group which is esterified to the phosphate group.
There are four ester linkages present in glycerophospholipid. The alcohol esterified to the phosphate group is an amino alcohol. The amino alcohol can be choline, ethanolamine, or serine that belongs to phosphatidylcholines, phosphatidylethanolamines and phosphatidylserines, respectively.
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General, Organic, and Biological Chemistry
- The following is a block diagram for a glycerophospholipid where the building blocks are labeled with letters and the linkages between building blocks are labeled with numbers. a. Which building blocks are fatty acid residues? b. Which building blocks are alcohol residues? c. Which linkages are ester linkages? d. Which linkages involve a phosphate residue?arrow_forward21-85 Which of the following statements is (are) consistent with what is known about membranes? (a) A membrane consists of a layer of proteins sandwiched between two layers of lipids. (b) The compositions of the inner and outer lipid layers are the same in any individual membrane. (c) Membranes contain glycolipids and glycoproteins. (d) Lipid bilayers are an important component of membranes. (e) Covalent bonding takes place between lipids and proteins in most membranes.arrow_forwardWhich of the terms triacylglycerol, glycerophospholipid, and sphingophospholipid applies to each of the following characterizations? More than one term may apply in a given situation. a. It contains four building blocks. b. All linkages are ester linkages. c. An alcohol building block is present. d. It is an energy-storage lipid.arrow_forward
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