Read the following statements. a. Columner or cubial cells get specialised for secretion and are called glandular epithelium. b. Exocrine glands secretes mucus , saliva , milk , insulin , enzymes etc. c. Goblet cells are unicellular glands while salivary glands are multicellular glands. d. Tight junctions cement the neighbouring cells together. How many statements are correct?

Options

A. `2`
B. `3`
C. `4`
D. `1`

Answer

To determine how many statements are correct, let's analyze each statement one by one:

### Step 1: Analyze Statement A
**Statement A:** "Columner or cubial cells get specialised for secretion and are called glandular epithelium."

- **Analysis:** This statement is correct. Columnar and cuboidal cells are indeed specialized for secretion and together they form glandular epithelium.

### Step 2: Analyze Statement B
**Statement B:** "Exocrine glands secretes mucus, saliva, milk, insulin, enzymes etc."

- **Analysis:** This statement is partially correct but misleading. Exocrine glands do secrete mucus, saliva, and milk, but they do not secrete insulin. Insulin is secreted by the pancreas, which is an endocrine gland. Therefore, this statement is incorrect.

### Step 3: Analyze Statement C
**Statement C:** "Goblet cells are unicellular glands while salivary glands are multicellular glands."

- **Analysis:** This statement is correct. Goblet cells are indeed unicellular glands that secrete mucus, while salivary glands are multicellular glands that secrete saliva.

### Step 4: Analyze Statement D
**Statement D:** "Tight junctions cement the neighbouring cells together."

- **Analysis:** This statement is misleading. While tight junctions do connect neighboring cells, the term "cement" is more accurately associated with anchoring junctions. Thus, this statement is incorrect.

### Conclusion
After analyzing all four statements:
- **Correct Statements:** A and C
- **Incorrect Statements:** B and D

Thus, the total number of correct statements is **2**.

### Final Answer
**2 statements are correct.**

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