Insulin is secreted by ____ of pancreas.

Options

A. `apha`-cells of pancreas
B. `beta`-cells of pancreas
C. `gamma `-cells of pancreas
D. Aicni of pancreas

Answer

To answer the question "Insulin is secreted by ____ of pancreas," we can follow these steps:

### Step 1: Identify the function of insulin
Insulin is a hormone that plays a crucial role in regulating blood glucose levels. It helps cells absorb glucose from the bloodstream and promotes the storage of glucose in various tissues.

**Hint:** Think about the role of insulin in glucose metabolism.

### Step 2: Understand the pancreas structure
The pancreas contains different types of cells, including alpha cells, beta cells, gamma cells, and acini. Each of these cells has specific functions.

**Hint:** Recall the different types of cells in the pancreas and their respective roles.

### Step 3: Focus on the cells that secrete insulin
Among the cells in the pancreas, beta cells are specifically responsible for the production and secretion of insulin.

**Hint:** Which cells are known for producing hormones related to blood sugar regulation?

### Step 4: Eliminate the other options
- **Alpha cells** secrete glucagon, which raises blood glucose levels.
- **Gamma cells** are less commonly referenced and do not play a significant role in glucose metabolism.
- **Acini** are involved in the production of digestive enzymes, not hormones.

**Hint:** Consider the functions of the other cell types listed in the options.

### Step 5: Conclude the answer
Based on the information gathered, the correct answer is that insulin is secreted by **beta cells of the pancreas**.

**Final Answer:** Insulin is secreted by **B. beta cells of pancreas**.