which step in glycolysis involves the process where direct substrate phosphoryla

Question

which step in glycolysis involves the process where direct substrate phosphorylation occurs? (a) 3- phosphoglycerate to phosphoenolpyruvate (b) 1,3, bisphosphoglycerate to 3-phosphoglycerate and phosphoenolpyruvate to pyruvate (c) fructose-6-phosphate to fructose1,6-bisphosphate (d) 3- phosphoglycerate to 2-phosphoglycerate and phosphoenolpyruvate to pyruvate which steps in glycolysis involves the process where six carbon sugar splits into two three carbon molecules? (a) 1,3-bisphosphoglycerate to 3-phosphoglycerate to 2-phosphoglycerate (b) fructose-6- phosphate to fructose 1,6-bisphosphate to 2-phosphoglycerate (c) fructose 1,6,bisphosphate to glyceraldehyde-3-phosphate and to dihydroxyacetone phosphate (d) glyceraldehyde-3-phosphate to pyruvate. which step in glycolysis involves the process where the first ATP molecules is hydrolyzed? (A) glucose to glucose -6-phosphate (b) fructose -6-phosphate to fructose-1,6-bisphosphate (c) 1,3- bisphosphoglycerate to 3 phosphoglycerate (d) 3- phosphoglycerate to 2-phosphoglycerate and phosphoenolpyruvate to pyruvate

Explanation / Answer

Question 1:

which step in glycolysis involves the process where direct substrate phosphorylation occurs?

(a) 3- phosphoglycerate to phosphoenolpyruvate

(b) 1,3, bisphosphoglycerate to 3-phosphoglycerate and phosphoenolpyruvate to pyruvate (c) fructose-6-phosphate to fructose1,6-bisphosphate

(d) 3- phosphoglycerate to 2-phosphoglycerate and phosphoenolpyruvate to pyruvate

Answer:

(b) 1,3, bisphosphoglycerate to 3-phosphoglycerate and phosphoenolpyruvate to pyruvate

Question 2:

which steps in glycolysis involves the process where six carbon sugar splits into two three carbon molecules?

(a) 1,3-bisphosphoglycerate to 3-phosphoglycerate to 2-phosphoglycerate

(b) fructose-6- phosphate to fructose 1,6-bisphosphate to 2-phosphoglycerate

(c) fructose 1,6,bisphosphate to glyceraldehyde-3-phosphate and to dihydroxyacetone phosphate

(d) glyceraldehyde-3-phosphate to pyruvate.

Answer: (c) fructose 1,6,bisphosphate to glyceraldehyde-3-phosphate and to dihydroxyacetone phosphate

Question 3:

which step in glycolysis involves the process where the first ATP molecules is hydrolyzed? (A) glucose to glucose -6-phosphate

(b) fructose -6-phosphate to fructose-1,6-bisphosphate

(c) 1,3- bisphosphoglycerate to 3 phosphoglycerate

(d) 3- phosphoglycerate to 2-phosphoglycerate and phosphoenolpyruvate to pyruvate

Answer: (A) glucose to glucose -6-phosphate

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