Question

The energy liberated in the breakdown of glucose molecules is not at all in the form of heat, but a large part of it is converted into chemical energy. What is the chemical form into which the energy is converted to?
A. GTP
B. ATP
C. ADP
D. NADP

Answer 1

Hint: The energy in an organism is stored in the form of ATP or Adenosine Triphosphate. It is also known as the energy currency of the cell.

Complete answer:
In this question we have asked when breakdown of glucose occurs, which is known as glycolysis, in which chemical form energy is converted to. Glycolysis is the metabolic pathway in which, glucose C₆H₁₂O₆ converts into pyruvate, CH₃COCOO⁻, and a hydrogen ion, H⁺.

The energy released in this process is used in ATP and NADH formation. The final process of this process is pyruvic acid. We already mentioned that ATP is the energy currency of the cell but how NADP is a form of energy. The quick answer is that NADP+ takes an election from water and forms NADPH. In the process, a phosphorus is added to ADP to produce ATP and cells use this ATP for energy.

> 1st option is GTP. GTP is guanosine triphosphate, which is also a form of energy but GTP is not released during glycolysis. So, this option is not true.

> 2nd option is ATP itself. As we already mentioned that during glycolysis ATP and NADP release and this NADP also convert into ATP. So this option is true.

> 3rd option is ADP. In the process of glycolysis ADP converts ATP. So ADP doesn't release, it consumes during glycolysis.

> 4th option is NADP. Yes NADP releases during glycolysis and it contains energy but, it has to convert into ATP to release energy. So, ATP is the final chemical product, not NADP. So, this option is also wrong.

The correct option is ATP.

Note: In this question both ATP and NADP are given as options and they both are a form of energy and both release during glycolysis but, NADP has to convert into ATP to release energy. So, ATP is the final chemical product, not NADP. So, don't confuse between NADP and ATP. The correct option is ATP.