To determine which enzyme in the human body starts the digestion of proteins, we can examine the options provided:

1. **Trypsin**: This enzyme is indeed involved in protein digestion, but it is secreted by the pancreas and acts in the small intestine. It does not start the digestion of proteins.

2. **Lactose**: This is not an enzyme that digests proteins. Instead, it is a sugar that is broken down by lactase, an enzyme that digests lactose.

3. **Pepsin**: This enzyme is produced in the stomach and is responsible for breaking down proteins into smaller peptides. Pepsin is indeed the enzyme that starts protein digestion in the human body.

4. **None of these**: This option would imply that none of the listed enzymes are responsible for starting protein digestion, which is incorrect given the presence of pepsin.

### Conclusion
Based on the analysis above, the correct answer is **C: Pepsin**. Pepsin is the enzyme that initiates the digestion of proteins in the human stomach.

Question

To determine which enzyme in the human body starts the digestion of proteins, we can examine the options provided:

1. **Trypsin**: This enzyme is indeed involved in protein digestion, but it is secreted by the pancreas and acts in the small intestine. It does not start the digestion of proteins.
  
2. **Lactose**: This is not an enzyme that digests proteins. Instead, it is a sugar that is broken down by lactase, an enzyme that digests lactose.

3. **Pepsin**: This enzyme is produced in the stomach and is responsible for breaking down proteins into smaller peptides. Pepsin is indeed the enzyme that starts protein digestion in the human body.

4. **None of these**: This option would imply that none of the listed enzymes are responsible for starting protein digestion, which is incorrect given the presence of pepsin.

### Conclusion
Based on the analysis above, the correct answer is **C: Pepsin**. Pepsin is the enzyme that initiates the digestion of proteins in the human stomach.

Knowee AI · Accepted Answer

To determine which enzyme in the human body starts the digestion of proteins, we can examine the options provided:

1. **Trypsin**: This enzyme is indeed involved in protein digestion, but it is secreted by the pancreas and acts in the small intestine. It does not start the digestion of proteins.
  
2. **Lactose**: This is not an enzyme that digests proteins. Instead, it is a sugar that is broken down by lactase, an enzyme that digests lactose.

3. **Pepsin**: This enzyme is produced in the stomach and is responsible for breaking down proteins into smaller peptides. Pepsin is indeed the enzyme that starts protein digestion in the human body.

4. **None of these**: This option would imply that none of the listed enzymes are responsible for starting protein digestion, which is incorrect given the presence of pepsin.

### Conclusion
Based on the analysis above, the correct answer is **C: Pepsin**. Pepsin is the enzyme that initiates the digestion of proteins in the human stomach.

Which of the following Enzyme in the human body starts the digestion of proteins?Select an answerATrypsinBLactoseCPepsinDNone of these

Question

Which of the following Enzyme in the human body starts the digestion of proteins?

Solution

Conclusion

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