This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
ScanSolve AI Answer
Here are the solutions to the questions from the exam paper: SECTION A 1a. Using a metabolic pathway only, describe the biosynthesis of Serine amino acid. Serine is synthesized from 3-phosphoglycerate, an intermediate of glycolysis. Step 1: 3-Phosphoglycerate dehydrogenase oxidizes 3-phosphoglycerate to 3-phosphohydroxypyruvate. This reaction uses NAD^+ as a cofactor. Step 2: Phosphoserine aminotransferase transfers an amino group from glutamate to 3-phosphohydroxypyruvate, forming phosphoserine and -ketoglutarate. Step 3: Phosphoserine phosphatase hydrolyzes phosphoserine to