NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
ATP is a very important molecule because of the energy it provides. What functional group provides this energy?
A
Hydroxyl
B
Carboxyl
C
Amine
D
Phosphate
Explanation: 

Detailed explanation-1: -The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups. ATP is commonly referred to as the “energy currency” of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups.

Detailed explanation-2: -The common functional groups for ATP are hydroxyl, ether and amine.

Detailed explanation-3: -ATP is considered the molecular unit of intracellular energy currency. ATP derives its inherent energy secondary to anhydride bonds connecting adjacent phosphate functional groups. Hydrolysis of ATP energy generates energy for all cellular processes.

Detailed explanation-4: -The three phosphoryl groups are labeled as alpha (), beta (), and, for the terminal phosphate, gamma ().

Detailed explanation-5: -ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups. These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.

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