Chromophil cells of pharyngeal mass are

Options

A. Excretory cells
B. Glandular cells
C. Storage cells
D. Digestive cells

Answer

To solve the question regarding the chromophil cells of the pharyngeal mass, we can follow these steps:

### Step 1: Understand the Function of Chromophil Cells
Chromophil cells are specialized cells found in certain organisms, including earthworms. Their primary function is to secrete substances that aid in digestion.

**Hint:** Think about the role of cells in the digestive system.

### Step 2: Identify the Location
These cells are located in the pharyngeal mass of the earthworm. The pharyngeal mass is involved in the initial stages of digestion.

**Hint:** Consider where digestion begins in organisms like earthworms.

### Step 3: Determine the Secretion
Chromophil cells secrete saliva that contains tannin, mucus, and proteolytic enzymes. The presence of proteolytic enzymes indicates that these cells play a role in breaking down proteins.

**Hint:** What types of substances are typically involved in the digestion of proteins?

### Step 4: Analyze the Options
The question provides several options: excretory cells, glandular cells, ptorate cells, or digestive cells. Since the primary function of chromophil cells is to aid in digestion through their secretions, we can eliminate the options that do not relate to digestion.

**Hint:** Which of the options directly relates to the process of digestion?

### Step 5: Conclude the Answer
Based on the information gathered, we can conclude that chromophil cells of the pharyngeal mass are best classified as digestive cells because they secrete substances that aid in the digestion of food.

**Final Answer:** Chromophil cells of pharyngeal mass are digestive cells.

---