AP BIOLOGY

CELL RESPIRATION

ATP ADENOSINE TRIPHOSPHATE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the difference between ATP and ADP?
A
ADP powers movement, while ATP does not
B
ATP has three phosphates; ADP has two
C
ATP contains adenine and ribose, while ADP does not
D
ATP has less energy than ADP
Explanation: 

Detailed explanation-1: -ATP stands for adenosine triphosphate. ADP stands for adenosine diphosphate. ATP has three terminal phosphate groups. ADP has only two terminal phosphate groups.

Detailed explanation-2: -Answer and Explanation: The given statement is false. The difference between ADP and ATP is that ADP has two phosphate molecules, while ATP has three phosphate molecules.

Detailed explanation-3: -ATP stands for adenosine triphosphate. The word triphosphate indicates that the molecule has 3 phosphate groups. ATP stores energy within the bonds between phosphate groups, especially the second and third.

Detailed explanation-4: -ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atom of ribose. The diphosphate group of ADP is attached to the 5’ carbon of the sugar backbone, while the adenine attaches to the 1’ carbon.

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