Liver performs the function of

Options

A. Glycogenesis
B. Glycogenolysis
C. Deamination
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Functions of the Liver:**
The liver is a vital organ in the body that performs numerous functions related to digestion, metabolism, and detoxification.

2. **Identifying the Options:**
The options provided in the question are:
- A) Glycogenesis
- B) Glycogenolysis
- C) Deamination
- D) All of the above

3. **Explaining Glycogenesis:**
Glycogenesis is the process of converting glucose into glycogen for storage. This process occurs in the liver and muscle tissues and is stimulated by the hormone insulin. When there is an excess of glucose in the bloodstream, insulin facilitates its conversion into glycogen, helping to lower blood glucose levels.

4. **Explaining Glycogenolysis:**
Glycogenolysis is the breakdown of glycogen back into glucose. This process also occurs in the liver and is stimulated by the hormone glucagon, especially when blood glucose levels are low. Glucagon promotes the conversion of stored glycogen into glucose, which is then released into the bloodstream to raise blood glucose levels.

5. **Explaining Deamination:**
Deamination is the process of removing an amino group from amino acids. This process occurs in the liver and is crucial for the synthesis of various amino acids. It helps in the metabolism of proteins and the conversion of excess amino acids into usable forms.

6. **Conclusion:**
Since the liver is involved in all three processes—glycogenesis, glycogenolysis, and deamination—it can be concluded that the correct answer is D) All of the above.

**Final Answer: D) All of the above**

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