NADPH+, H+ is generated in the reaction catalysed by
## Core Concept
The question tests the understanding of biochemical pathways, specifically those involving the generation of NADPH and H+. NADPH is a crucial reducing agent in various anabolic reactions, including fatty acid synthesis, cholesterol synthesis, and antioxidant defenses. The generation of NADPH and H+ is key in several enzymatic reactions.
## Why the Correct Answer is Right
The correct answer involves the enzyme **Glucose-6-phosphate dehydrogenase** (G6PD), which catalyzes the conversion of glucose-6-phosphate to 6-phosphogluconolactone, generating NADPH and H+ in the process. This reaction is part of the **pentose phosphate pathway**, which is important for producing NADPH and pentoses from glucose-6-phosphate. The reaction is as follows:
Glucose-6-phosphate + NADP+ → 6-Phosphogluconolactone + NADPH + H+
## Why Each Wrong Option is Incorrect
- **Option A:** This option is incorrect because it does not correspond to the correct enzyme or reaction that generates NADPH and H+.
- **Option B:** This option is incorrect as it represents another enzyme or reaction not directly associated with the generation of NADPH and H+ through the described mechanism.
- **Option D:** This option is incorrect because it does not accurately represent the enzyme or reaction responsible for generating NADPH and H+.
## Clinical Pearl / High-Yield Fact
A key clinical correlation is that deficiencies in **Glucose-6-phosphate dehydrogenase** can lead to **hemolytic anemia** due to the reduced ability of red blood cells to generate NADPH, which is necessary for maintaining glutathione in its reduced form to protect against oxidative damage.
## Correct Answer: C. Glucose-6-phosphate dehydrogenase.