The Question is from neet-botany , and it was created by the author D VINOD

Question

The isomerization of glucose-6-phosphate to fructose-6-phosphate in glycolysis is catalyzed by:

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
 **Primary Concept**: Glycolysis and Enzyme Catalysis
 **Related Topics**: Metabolism, Carbohydrate metabolism, Enzyme kinetics
 **Prerequisites**: Understanding of glycolysis pathway, enzyme function.
## SOLUTION PATHWAY
**Given Information**:
  The reaction is the isomerization of glucose-6-phosphate to fructose-6-phosphate.
  This reaction is a step in glycolysis.
**Method & Steps**:
 1. Identify the enzyme responsible for this specific isomerization reaction within the glycolysis pathway.
  Reasoning: Glycolysis involves a series of enzymatic reactions.  Each step is catalyzed by a specific enzyme.
  Formula/Rule:  No specific formula is needed; this is a knowledge-based question.
 2. Recall the role of phosphoglucose isomerase in glycolysis.
  Working: Phosphoglucose isomerase catalyzes the reversible isomerization between glucose-6-phosphate and fructose-6-phosphate.
  Key Point: This isomerization is crucial for the subsequent steps in glycolysis.
 3. Identify the correct enzyme from the given options.
  Result: Phosphoglucose isomerase (option B) is the correct enzyme.
  Verification:  This is verified by the established knowledge of the glycolysis pathway.
 ## OPTION ANALYSIS
A :x: Hexokinase catalyzes the phosphorylation of glucose to glucose-6-phosphate in the first step of glycolysis.
B ✓: Phosphoglucose isomerase catalyzes the isomerization of glucose-6-phosphate to fructose-6-phosphate, which is the correct answer.
C :x: Phosphofructokinase catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate, a later step in glycolysis.
D :x: Aldolase catalyzes the cleavage of fructose-1,6-bisphosphate into glyceraldehyde-3-phosphate and dihydroxyacetone phosphate, a further step down the glycolysis pathway.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the roles of different enzymes in glycolysis:  Understanding the specific function of each enzyme in the glycolysis pathway is crucial to avoid this mistake.
  2.Failing to recall the glycolysis pathway:  A strong understanding of the glycolysis pathway and the order of reactions is essential.
 **Quick Tips**:
  1.Memorize the names and functions of key glycolytic enzymes and their associated reactions.
  2.Use diagrams and mnemonics to aid in memorizing the glycolysis pathway.

D VINOD · Answer

Hexokinase

D VINOD · Answer

The correct Option is "Phosphoglucose isomerase"

D VINOD · Answer

Phosphofructokinase

D VINOD · Answer

Aldolase

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