Which statement(s) is/are true ?
(A) Exocrine glands secrete mucus, Saliva, Earwax, Oil and milk
(B) Endocrine glands secrete hormones directly into the fluid
(C) Unicellular glands consisting of isolated glandular cells.

Options

A. A, B, C
B. Only C
C. B, C
D. A, B

Answer

To solve the question regarding the truth of the statements about exocrine glands, endocrine glands, and unicellular glands, we will analyze each statement one by one.

### Step-by-Step Solution:

**Step 1: Analyze Statement A**
- Statement A claims that exocrine glands secrete mucus, saliva, earwax, oil, and milk.
- Exocrine glands are defined as glands that secrete their products through ducts to the surface of an organ or tissue or into a body cavity.
- Examples of exocrine glands include:
- Salivary glands (secrete saliva)
- Mammary glands (secrete milk)
- Ceruminous glands (secrete earwax)
- Sebaceous glands (secrete oil)
- Goblet cells (secrete mucus)
- Since all the mentioned secretions are indeed produced by exocrine glands, **Statement A is true**.

**Step 2: Analyze Statement B**
- Statement B states that endocrine glands secrete hormones directly into the fluid.
- Endocrine glands are characterized by their ability to release hormones directly into the bloodstream rather than through ducts.
- Examples of endocrine glands include:
- Pituitary gland
- Thyroid gland
- Adrenal glands
- Since endocrine glands do secrete hormones directly into the blood (which is a fluid), **Statement B is also true**.

**Step 3: Analyze Statement C**
- Statement C claims that unicellular glands consist of isolated glandular cells.
- Unicellular glands are indeed composed of a single cell type that functions as a gland.
- A common example is the goblet cell found in the intestinal lining, which secretes mucus.
- Therefore, **Statement C is true** as well.

### Conclusion:
All three statements (A, B, and C) are true.

### Final Answer:
- **True Statements**: A, B, C

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