AP BIOLOGY

CELL RESPIRATION

ATP ADENOSINE TRIPHOSPHATE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or false:the middle phosphate molecule is removed when ATP is converted to ADP
A
True
B
False
Explanation: 

Detailed explanation-1: -So, the correct option is ‘False’.

Detailed explanation-2: -When ATP, the cell’s energy currency, is hydrolyzed to generate ADP and inorganic phosphate, energy is released. It occurs when high-energy phosphate bonds in the terminal locations break down. The cell needs energy to perform other functions. The enzyme ATP synthase is typically present in mitochondria.

Detailed explanation-3: -ATP (adenosine triphosphate) has three phosphate groups that can be removed by hydrolysis to form ADP (adenosine diphosphate) or AMP (adenosine monophosphate). If there are no phosphates at all, the molecule is referred to as a “nucleoside", rather than a “nucleotide".

Detailed explanation-4: -When ADP is broken down into ATP, energy is released. 3. ATP is synthesized by the cell through cell respiration.

Detailed explanation-5: -Usually only the outer phosphate is removed from ATP to yield energy; when this occurs ATP is converted to adenosine diphosphate (ADP), the form of the nucleotide having only two phosphates. ATP is able to power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation).

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