NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Glycerol bonded to fatty acid chains.
A
Protein
B
RNA
C
lipid
D
Enzyme
Explanation: 

Detailed explanation-1: -In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released. Since fats consist of three fatty acids and a glycerol, they are also called triacylglycerols or triglycerides.

Detailed explanation-2: -Triacylglycerols are formed by linking fatty acids with an ester linkage to three alcohol groups in glycerol. Triacylglycerols are the form in which fat energy is stored in adipose tissue. Triacylglycerols are sometimes referred to as triglycerides.

Detailed explanation-3: -Triglycerides are simple lipid which constituted one molecule of glycerol and three molecules of fatty acids. Triglyceride is the storage form of lipid, which is used for energy production. Triglycerides are found circulating in the blood where they are transported by very-low-density lipoprotein (VLDL).

Detailed explanation-4: -Phospholipids are the major constituent of the plasma membrane. Like fats, they are composed of fatty acid chains attached to a glycerol or similar backbone. Instead of three fatty acids attached, however, there are two fatty acids and the third carbon of the glycerol backbone is bound to a phosphate group.

Detailed explanation-5: -Answer and Explanation: The fat or lipid molecule that is made up of glycerol and three fatty acid chains is the TRIGLYCERIDE.

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