Gluconeogenesis , lipolysis, proteolysis and inhibition of cellular uptake and utilization of amino acid are performed by

Options

A. Aldosterone
B. Glucocorticoid
C. Insulin
D. Mineralocorticoid

Answer

To answer the question regarding which hormone is responsible for gluconeogenesis, lipolysis, proteolysis, and inhibition of cellular uptake and utilization of amino acids, we can follow these steps:

### Step 1: Understand the Processes
- **Gluconeogenesis** is the process of synthesizing glucose from non-carbohydrate sources, primarily in the liver.
- **Lipolysis** is the breakdown of fats into fatty acids and glycerol, which can be used for energy.
- **Proteolysis** involves the breakdown of proteins into amino acids.
- **Inhibition of cellular uptake and utilization of amino acids** refers to reducing the absorption and use of amino acids by cells.

### Step 2: Identify the Hormones
- The hormone that plays a significant role in gluconeogenesis is **glucagon**. It is secreted by the alpha cells of the pancreas when blood glucose levels are low.
- **Lipolysis** is also stimulated by glucagon, as it promotes the breakdown of stored fats.
- **Proteolysis** can be influenced by glucagon as well, as it helps in mobilizing amino acids during fasting states.
- Glucagon inhibits the uptake of amino acids by cells, ensuring that they are available for gluconeogenesis and other metabolic processes.

### Step 3: Conclusion
Based on the functions described, the hormone responsible for gluconeogenesis, lipolysis, proteolysis, and inhibition of cellular uptake and utilization of amino acids is **glucagon**.

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