Read the following statements carefully: (A) Some squamous or cuboidal cells get specialised for secretion to form glandular epithelium. (B) Goblet cells of the alimentary canal are examples of isolated glandular cells. (C) Exocrine glands secrete their products directly into the fluid bathing the gland. (D) Saliva, earwax and milk are secretions of exocrine glands. How many of the above statements are correct?

Step-by-step solution

Let us evaluate each statement based on the NCERT description of glandular epithelium: Statement (A) is incorrect. It is some of the columnar or cuboidal cells (not squamous) that get specialised for secretion and are called glandular epithelium. Statement (B) is correct. Unicellular glands consist of isolated glandular cells, and goblet cells of the alimentary canal are the classic example. Statement (C) is incorrect. Exocrine glands release their products through ducts or tubes. It is the endocrine glands (which