Match the following.
`{:("List-I","List-II"),("I) Glands without ducts","A) Cerimunous gland"),( "II) Isolated unicellular glands","B) Islets of langerhans"),("III) Glands with ducts","C) Goblet cells"),("IV) Glands that produce wax","D) Salivary glands "):}`

Options

A. I-D, II-B, III-C, IV-A
B. I-C, II-A, III-B, IV-D
C. III-D, II-C, IV-A, I-B
D. I-A, II-B, III-C, IV-D

Answer

To solve the matching question, we need to pair the items from List-I with the correct items from List-II based on their characteristics. Let's go through each item step by step.

### Step 1: Identify the glands without ducts
- **Glands without ducts** refer to endocrine glands that release their secretions directly into the bloodstream.
- The only gland listed that fits this description is **Islets of Langerhans**, which are specialized cells in the pancreas that produce insulin.

**Match: I) Glands without ducts → B) Islets of Langerhans**

### Step 2: Identify isolated unicellular glands
- **Isolated unicellular glands** are single-celled glands that secrete substances.
- **Goblet cells** are specialized epithelial cells that secrete mucus and are classified as isolated unicellular glands.

**Match: II) Isolated unicellular glands → C) Goblet cells**

### Step 3: Identify glands with ducts
- **Glands with ducts** are exocrine glands that secrete their products through ducts to the surface of organs or tissues.
- **Salivary glands** are exocrine glands that produce saliva and have ducts.

**Match: III) Glands with ducts → D) Salivary glands**

### Step 4: Identify glands that produce wax
- **Glands that produce wax** refer to glands that secrete a waxy substance.
- **Ceruminous glands** are modified sweat glands located in the ear canal that produce earwax.

**Match: IV) Glands that produce wax → A) Ceruminous gland**

### Final Matches:
1. I) Glands without ducts → B) Islets of Langerhans
2. II) Isolated unicellular glands → C) Goblet cells
3. III) Glands with ducts → D) Salivary glands
4. IV) Glands that produce wax → A) Ceruminous gland

### Summary of Matches:
- I - B
- II - C
- III - D
- IV - A