Glycolysi4 - second step of glycolysis? What are the...

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Glycolysis Problems Problem : Where does glycolysis take place in a cell? Solution for Problem 1 >> In the cytosol. Problem : What is the name of the enzyme that catalyzes the phosphorylation of a glucose molecule in the first step of glycolysis? Solution for Problem 2 >> Hexokinase. Problem : In glycolytic steps one and three, what is the source of the phosphate groups that are added to glucose and fructose-6-phosphate, respectively? Solution for Problem 3 >> In both cases the phosphate source is ATP. ATP molecules have three phosphate groups and after donating one phosphate group become ADP, a two phosphate containing molecule. Problem : What class of metabolic reaction is catalyzed by phosphoglucose isomerase in the
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Unformatted text preview: second step of glycolysis? What are the starting and ending molecules in this step? Solution for Problem 4 >> An isomerization reaction occurs converting glucose-6-phosphate into fructose-6-phosphate. Problem : In step four of glycolysis, why is dihyroxyacetone phosphate (DHAP) immediately converted into glyceraldehyde-3-phosphate (GAP) by the enzyme triosphosphate isomerase? Solution for Problem 5 >> Of the two aldolase products of step four, DHAP and GAP, only GAP continues on in the glycolytic pathway. DHAP is converted to GAP so that it can continue in glycolysis....
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