Through which conversion is energy released?

A. ADP to ATP
B. ATP to ADP
C. [tex] NADP ^{+} [/tex] to NADPH
D. [tex] CO _2 [/tex] and [tex] H _2 O [/tex] to [tex] C _6 H _{12} O _6 [/tex] and [tex] O _2 [/tex]



Answer :

Certainly! Energy is released during the conversion of ATP (Adenosine Triphosphate) to ADP (Adenosine Diphosphate).

Here's a step-by-step breakdown:

1. ATP (Adenosine Triphosphate) Structure:
- ATP consists of adenine, ribose (a sugar), and three phosphate groups.

2. Energy Storage:
- The bonds between the phosphate groups, particularly the bond between the second and third phosphate (terminal phosphate), are high-energy bonds.

3. Energy Release:
- When ATP is converted to ADP, the bond between the second and third phosphate group is broken.
- This process releases a substantial amount of energy that can be used to power various cellular functions.

4. The Chemical Equation:
- The conversion can be represented by the following chemical reaction:
[tex]\[ \text{ATP} + \text{H}_2\text{O} \rightarrow \text{ADP} + \text{Pi} + \text{Energy} \][/tex]
where [tex]\( \text{Pi} \)[/tex] represents inorganic phosphate.

5. Significance in Biological Systems:
- This released energy is crucial for many cellular processes such as muscle contraction, nerve impulse propagation, and chemical synthesis.

Hence, energy is released during the conversion of ATP to ADP.

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