AP BIOLOGY

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CELL RESPIRATION

AEROBIC RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
ATP is known as the universal currency of energy. ATP is a phosphorylated nucleotide which is known as a ‘high energy’ molecule. It is made of an organic base, adenine, a 5 carbon sugar named ____ and ____
A
two phosphate groups and glucose
B
three phosphate groups and glucose
C
ribose and two phosphate groups
D
ribose and three phosphate groups
Explanation: 

Detailed explanation-1: -ATP is the energy currency of the cell because it is the most preferred energy molecule in the cell. Its preference is due to the following factors: It donates its phosphoryl groups to release energy.

Detailed explanation-2: -Each nucleotide consists of an organic base, ribose sugar and phosphate group. ATP is a nucleotide with two extra phosphate groups! This is the reason for the term ‘phosphorylated nucleotide’.

Detailed explanation-3: -ATP – Adenosine triphosphate is called the energy currency of the cell. It is the organic compound composed of the phosphate groups, adenine, and the sugar ribose. These molecules provide energy for various biochemical processes in the body. Therefore, it is called “Energy Currency of the Cell”.

Detailed explanation-4: -ATP is universally conserved as the principal energy currency in cells, driving metabolism through phosphorylation and condensation reactions. Such deep conservation suggests that ATP arose at an early stage of biochemical evolution.

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