Question

Which one of the following is first step of
glycolysis?
(a) Breakdown of glucose
(b) Phosphorylation of glucose
(c) Conversion of glucose
(d) Dehydrogenation of glucose

Answer 1

Answer:

(b)

Explanation:

is a right answer ok I hope you will understand

Answer 2

Answer is option "b"

Explanation:

• Glycolysis is a process in which one mole of glucose is partially oxidized into two moles of pyruvate in a series of enzyme-catalyzed reactions.
• The first step of glycolysis is phosphorylation of Glucose in which Glucose is phosphorylated by ATP to form a glucose 6-phosphate.
• The negative charge of the phosphate blocks the entry of the glucose 6-phosphate through the plasma film, catching glucose inside the cell.. This irreversible reaction is catalyzed by the enzyme "hexokinase".
• So, the right answer is option b "phosphorylation of glucose".