Q.116
NADH, generated in energy yielding reactions of cytosol, is transported to mitochondria through
- Transport of Cytosolic Reducing Equivalents into Mitochondria:
- The inner mitochondrial membrane is strictly impermeable to $NADH$ produced in the cytosol during glycolysis.
- Glycerol-3-Phosphate Shuttle:
- Cytosolic glycerol-3-phosphate dehydrogenase oxidizes $NADH$ to $NAD^+$, reducing dihydroxyacetone phosphate (DHAP) to glycerol-3-phosphate (G3P).
- G3P diffuses across the outer mitochondrial membrane.
- Mitochondrial glycerol-3-phosphate dehydrogenase (located on the outer surface of the inner membrane) re-oxidizes G3P back to DHAP, transferring electrons to an enzyme-bound $FAD$ to form $FADH_2$.
- $FADH_2$ passes electrons directly to ubiquinone (coenzyme Q) in the electron transport chain.
- nalysis:
- (Glycerol-3-phosphate shuttle): Correct.
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
Report
Want to practice this paper in exam conditions?
क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं?
Test yourself in 5-question batch format with timer and hidden answers.
5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode →
प्रैक्टिस टेस्ट मोड शुरू करें →