MHT CET 202624 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 24 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Respiration in Plants
MHT CET 2026 · 24 April · Morning Shift · Biology · Respiration in Plants
Total number of ATP molecules utilised in one glycolytic pathway is...
Total number of ATP molecules utilised in one glycolytic pathway is _________.
Options
- A2
- B4
- C6
- D8
Correct answer
A. 2
Step-by-step solution
Glycolysis is the metabolic pathway that converts glucose into pyruvate.
During the energy investment phase of glycolysis, ATP is consumed in two specific reactions:
1. Phosphorylation of glucose to glucose-6-phosphate, catalyzed by the enzyme hexokinase, utilizes 1 ATP molecule.
2. Phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate, catalyzed by the enzyme phosphofructokinase, utilizes 1 ATP molecule.
Therefore, a total of 2 ATP molecules are utilized in one glycolytic pathway.
Answer: 2
During the energy investment phase of glycolysis, ATP is consumed in two specific reactions:
1. Phosphorylation of glucose to glucose-6-phosphate, catalyzed by the enzyme hexokinase, utilizes 1 ATP molecule.
2. Phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate, catalyzed by the enzyme phosphofructokinase, utilizes 1 ATP molecule.
Therefore, a total of 2 ATP molecules are utilized in one glycolytic pathway.
Answer: 2