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Phospholipids are esters of glycerol with
- a)two carboxylic acid residues and one phosphate group
- b)one carboxylic acid residue and two phosphate groups
- c)three phosphate groups
- d)three carboxylic acid residues
Correct answer is option 'A'. Can you explain this answer?
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Phospholipids are esters of glycerol witha)two carboxylic acid residue...
Phospholglycerides are esters of only two fatty acids, phosphoric acid and a trifunctional alcohol - glycerol (IUPAC name is 1,2,3-propantriol).
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Phospholipids are esters of glycerol witha)two carboxylic acid residue...
Phospholipids are a type of lipid that are essential components of cell membranes. They consist of a glycerol molecule, two hydrophobic fatty acid chains, and a hydrophilic phosphate group. Phospholipids are amphipathic molecules, meaning that they have both hydrophobic and hydrophilic properties.
Esters of Glycerol
Phospholipids are esters of glycerol, which means that they are formed through a condensation reaction between glycerol and fatty acids. During this reaction, the hydroxyl groups (-OH) of glycerol react with the carboxylic acid groups (-COOH) of the fatty acids, resulting in the formation of ester bonds (-COO-).
Two Carboxylic Acid Residues and One Phosphate Group
The esterification of glycerol with two carboxylic acid residues and one phosphate group results in the formation of phosphatidic acid, which is the simplest form of phospholipid. Phosphatidic acid contains a glycerol backbone, two fatty acid chains, and a phosphate group. The phosphate group is typically esterified to an alcohol group, such as choline, ethanolamine, or serine, to form different types of phospholipids.
Three Carboxylic Acid Residues or Three Phosphate Groups
Option 'D' can be ruled out because phospholipids do not have three carboxylic acid residues. Option 'C' can also be ruled out because phospholipids typically have only one phosphate group esterified to the glycerol backbone. Therefore, the correct answer is option 'A', which describes the structure of phospholipids with two carboxylic acid residues and one phosphate group esterified to the glycerol backbone.
Esters of Glycerol
Phospholipids are esters of glycerol, which means that they are formed through a condensation reaction between glycerol and fatty acids. During this reaction, the hydroxyl groups (-OH) of glycerol react with the carboxylic acid groups (-COOH) of the fatty acids, resulting in the formation of ester bonds (-COO-).
Two Carboxylic Acid Residues and One Phosphate Group
The esterification of glycerol with two carboxylic acid residues and one phosphate group results in the formation of phosphatidic acid, which is the simplest form of phospholipid. Phosphatidic acid contains a glycerol backbone, two fatty acid chains, and a phosphate group. The phosphate group is typically esterified to an alcohol group, such as choline, ethanolamine, or serine, to form different types of phospholipids.
Three Carboxylic Acid Residues or Three Phosphate Groups
Option 'D' can be ruled out because phospholipids do not have three carboxylic acid residues. Option 'C' can also be ruled out because phospholipids typically have only one phosphate group esterified to the glycerol backbone. Therefore, the correct answer is option 'A', which describes the structure of phospholipids with two carboxylic acid residues and one phosphate group esterified to the glycerol backbone.
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Phospholipids are esters of glycerol witha)two carboxylic acid residues and one phosphate groupb)one carboxylic acid residue and two phosphate groupsc)three phosphate groupsd)three carboxylic acid residuesCorrect answer is option 'A'. Can you explain this answer?
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