When is an enzyme able to work properly

Principles Of Radiographic Imaging: An Art And A Science
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Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
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Chapter6: X-ray Equipment
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1. Looking at the graph you should be able to explain every activity of every enzyme. Please describe each one of them.

1A: Why is Temperature and pH so important? When is an enzyme able to work properly

 

The image contains two graphs illustrating the optimal conditions for enzyme activity, focusing on temperature and pH.

### Graph (a): Optimal Temperature for Two Enzymes

**Description:**
- **X-axis:** Temperature (°C), ranging from 0 to 100.
- **Y-axis:** Rate of reaction.
- **Curves:**
  - **Black Curve:** Represents a typical human enzyme. It shows peak activity around 37°C, which aligns with normal human body temperature.
  - **Red Curve:** Represents the enzyme of thermophilic (heat-tolerant) bacteria. This curve peaks around 75°C, indicating that these enzymes function best at higher temperatures.

**Interpretation:**
- Human enzymes are optimized for moderate temperatures, such as those found in the human body.
- Thermophilic bacterial enzymes are adapted to high temperatures, illustrating their role in environments like hot springs.

### Graph (b): Optimal pH for Two Enzymes

**Description:**
- **X-axis:** pH, ranging from 0 to 10.
- **Y-axis:** Rate of reaction.
- **Curves:**
  - **Black Curve:** Represents pepsin, a stomach enzyme. The peak activity occurs at a pH of around 2, indicating its adaptation to the acidic environment of the stomach.
  - **Red Curve:** Represents trypsin, an intestinal enzyme, with optimal activity at pH 8, reflecting the more neutral conditions of the intestine.

**Interpretation:**
- Pepsin is specialized for functioning in the acidic conditions of the stomach.
- Trypsin operates effectively in the slightly alkaline conditions of the small intestine.

These graphs demonstrate how enzymes are optimized for specific environmental conditions, which is crucial for their biological functions.
Transcribed Image Text:The image contains two graphs illustrating the optimal conditions for enzyme activity, focusing on temperature and pH. ### Graph (a): Optimal Temperature for Two Enzymes **Description:** - **X-axis:** Temperature (°C), ranging from 0 to 100. - **Y-axis:** Rate of reaction. - **Curves:** - **Black Curve:** Represents a typical human enzyme. It shows peak activity around 37°C, which aligns with normal human body temperature. - **Red Curve:** Represents the enzyme of thermophilic (heat-tolerant) bacteria. This curve peaks around 75°C, indicating that these enzymes function best at higher temperatures. **Interpretation:** - Human enzymes are optimized for moderate temperatures, such as those found in the human body. - Thermophilic bacterial enzymes are adapted to high temperatures, illustrating their role in environments like hot springs. ### Graph (b): Optimal pH for Two Enzymes **Description:** - **X-axis:** pH, ranging from 0 to 10. - **Y-axis:** Rate of reaction. - **Curves:** - **Black Curve:** Represents pepsin, a stomach enzyme. The peak activity occurs at a pH of around 2, indicating its adaptation to the acidic environment of the stomach. - **Red Curve:** Represents trypsin, an intestinal enzyme, with optimal activity at pH 8, reflecting the more neutral conditions of the intestine. **Interpretation:** - Pepsin is specialized for functioning in the acidic conditions of the stomach. - Trypsin operates effectively in the slightly alkaline conditions of the small intestine. These graphs demonstrate how enzymes are optimized for specific environmental conditions, which is crucial for their biological functions.
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