other is without enzymes. For these reactions, the “X' indicates: a) b) free energy of glucose free energy of activation without enzymes free energy of CO2 + H2O free energy released free energy of activation with c) d)

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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The image presents an energy diagram illustrating the energy changes involved in converting glucose (C₆H₁₂O₆) to CO₂ and H₂O. The diagram features two curves: one representing the reaction with enzymes and the other without enzymes. 

### Diagram Explanation:
- **Y-axis:** Free energy, G
- **X-axis:** Progress of reaction
- **Initial State:** Represents glucose and oxygen (Glucose + 6O₂)
- **Final State:** Represents carbon dioxide and water (6CO₂ + 6H₂O)
- **Two Curves:**
  - **Upper Curve:** Indicates the energy pathway without enzymes, showing a higher peak.
  - **Lower Curve:** Represents the energy pathway with enzymes, having a lower peak.
- **"X" Label:** Marks the difference in activation energy between the two pathways.

### Questions:
The "X" in the diagram indicates:
a) Free energy of glucose  
b) Free energy of activation without enzymes  
c) Free energy of CO₂ + H₂O  
d) Free energy released  
e) Free energy of activation with enzymes  

This diagram helps visualize how enzymes lower the activation energy required for the reaction, highlighting the efficiency of enzymatic processes in biological systems.
Transcribed Image Text:The image presents an energy diagram illustrating the energy changes involved in converting glucose (C₆H₁₂O₆) to CO₂ and H₂O. The diagram features two curves: one representing the reaction with enzymes and the other without enzymes. ### Diagram Explanation: - **Y-axis:** Free energy, G - **X-axis:** Progress of reaction - **Initial State:** Represents glucose and oxygen (Glucose + 6O₂) - **Final State:** Represents carbon dioxide and water (6CO₂ + 6H₂O) - **Two Curves:** - **Upper Curve:** Indicates the energy pathway without enzymes, showing a higher peak. - **Lower Curve:** Represents the energy pathway with enzymes, having a lower peak. - **"X" Label:** Marks the difference in activation energy between the two pathways. ### Questions: The "X" in the diagram indicates: a) Free energy of glucose b) Free energy of activation without enzymes c) Free energy of CO₂ + H₂O d) Free energy released e) Free energy of activation with enzymes This diagram helps visualize how enzymes lower the activation energy required for the reaction, highlighting the efficiency of enzymatic processes in biological systems.
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