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The pentose phosphate pathway is regulated by __________*1 pointNone of these optionsAcetyl CoAAll optionsNADP+ATPNADPH

Question

The pentose phosphate pathway is regulated by __________

1 point

  • None of these options
  • Acetyl CoA
  • All options
  • NADP+
  • ATP
  • NADPH
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Solution

The pentose phosphate pathway is regulated by the levels of NADP+ and NADPH in the cell.

Here are the steps:

  1. The pentose phosphate pathway is a metabolic pathway parallel to glycolysis and it generates NADPH and pentoses.

  2. The first enzyme of the pathway, glucose-6-phosphate dehydrogenase, is regulated by the levels of NADP+ and NADPH.

  3. When the cell has a high NADP+/NADPH ratio, indicating a need for reducing power, the pathway is stimulated.

  4. Conversely, when the NADP+/NADPH ratio is low, indicating a sufficient supply of reducing power, the pathway is inhibited.

So, the pentose phosphate pathway is regulated by NADP+ and NADPH.

This problem has been solved

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