Concept explainers
(a)
Interpretation: Among the terms triacylglycerol, glycerophospholipid and sphingophospholipids, the term that can be applied to the given characterization has to be predicted.
Concept introduction: Triacylglycerol is produced by the reaction of one molecule of glycerol and three molecules of fatty acid. Glycerophospholipids 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. In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group.
(b)
Interpretation: Among the terms triacylglycerol, glycerophospholipid and sphingophospholipids, the term that can be applied to the given characterization has to be predicted.
Concept introduction: Triacylglycerol is produced by the reaction of one molecule of glycerol and three molecules of fatty acid. Glycerophospholipids 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. In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group.
(c)
Interpretation: Among the terms triacylglycerol, glycerophospholipid and sphingophospholipids, the term that can be applied to the given characterization has to be predicted.
Concept introduction: Triacylglycerol is produced by the reaction of one molecule of glycerol and three molecules of fatty acid. Glycerophospholipids 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. In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group.
(d)
Interpretation: Among the terms triacylglycerol, glycerophospholipid and sphingophospholipids, the term that can be applied to the given characterization has to be predicted.
Concept introduction: Triacylglycerol is produced by the reaction of one molecule of glycerol and three molecules of fatty acid. Glycerophospholipids 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. In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group.
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Chapter 19 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- 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_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_forwardWhat structure do all steroids have in common?arrow_forward
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- List two structural differences between sphingolipids and phosphoglycerides.arrow_forwardWhat is the basis for deciding if a substance is a lipid?arrow_forwardWhich of the substance categories biological wax, mineral wax, bile acid, and sphingophospholipid has each of the following characteristics? More than one substance may have a given characteristic. a. Structure is based on a steroid nucleus b. A saponifiable lipid c. Contains at least one fatty acid building block d. Contains at least one amide linkagearrow_forward
- 21-85 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_forward6 Where is glycogen stored in the human body?arrow_forwardWhich of the substance categories biological wax, mineral wax, bile acid, and sphingoglycolipid has each of the following characteristics? More than one substance may have a given characteristic. a. Contains at least one ester linkage b. Contains at least one alcohol building block c. Classified as a protective-coating lipid d. Classified as an emulsification lipidarrow_forward
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