Answer:
The correct answer is letter C.
Conversion of pyruvate to phosphoenolpyruvate (PEP) is bypassed in gluconeogenesis by using two enzymes.
<h3>How does the conversion of pyruvate to phosphoenolpyruvate take place?</h3>
Pyruvate carboxylase and phosphoenolpyruvate carboxykinase (PEPCK) are two different enzymes that work together to catalyze a two-step process that bypasses the glycolytic stage mediated by pyruvate kinase.
The common metabolite of these enzymes is oxaloacetate.
The steps to convert pyruvate to phosphoenolpyruvate are as follows:
- In the mitochondrion, pyruvate is converted to oxaloacetate by pyruvate carboxylase.
- In the cytosol, malate or aspartate is formed from oxaloacetate and is then converted back to oxaloacetate.
- Oxaloacetate is changed into phosphoenolpyruvate by the enzyme phosphoenolpyruvate carboxykinase.
- Phosphoenolpyruvate reverses the processes of glycolysis to produce fructose 1,6-bisphosphate.
Learn more about gluconeogenesis here:
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Located inferior to the stomach<span>, the </span>duodenum<span> is a 10-12 inch (25-30 cm) long C-shaped, hollow tube. The </span>duodenum<span> is a part of the gastrointestinal (GI) tract, attached to the pyloric sphincter of the </span>stomach<span> on its superior end and to the jejunum of the small intestine on its inferior end....</span>
When the sun rises it gives us energy. we use rivers for drinking and we also use rivers for transportation.
Embryo should be the answer