HUMAN NUTRITION

NUTRITION

LIPIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the difference between a triglyceride and a phospholipid?
A
A triglyceride contains 2 fatty acids and a phospholipid contains 3 fatty acids
B
A triglyceride contains 3 fatty acids and a phospholipid contains 3 fatty acids
C
A triglyceride contains 2 fatty acids and a phosphate and a phospholipid contains 3 fatty acids
D
A triglyceride contains 3 fatty acids and a phospholipid contains 3 fatty acids and a phosphate
Explanation: 

Detailed explanation-1: -Like triglycerides, phospholipids have a glycerol backbone. But unlike triglycerides, phospholipids only have two fatty acid molecules attached to the glycerol backbone, while the third carbon of the glycerol backbone is bonded to a phosphate group-a chemical group that contains the mineral phosphorus.

Detailed explanation-2: -What is the difference between Fatty Acids and Triglycerides? Fatty acids are carboxylic acids with-COOH parts, whereas triglycerides are organic esters. Fatty acids are derived from triglycerides. Three fatty acid molecules and one glycerol molecule undergo esterification to form one triglyceride molecule.

Detailed explanation-3: -A phospholipid is an amphipathic molecule, meaning it has a hydrophobic part and a hydrophilic part. The fatty acid chains are hydrophobic and do not interact with water, whereas the phosphate-containing group is hydrophilic (because of its charge) and interacts readily with water.

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