Question

In which of the following, entire cell is lost along with secretion?

• A. Sebaceous glands
• B. Ceruminous glands
• C. Salivary glands
• D. Pancreas

Answer 1

The correct option is A Sebaceous glands

Glands that release entire cells along with secretion are sebaceous glands. The sebaceous glands are glands in the skin that secrete an oily or waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals. The type of secretion of the sebaceous glands is referred to as holocrine. 'Holocrine' secretions are produced in the cytoplasm of the cell and released by the rupture of the plasma membrane, which destroys the cell and results in the secretion of the product into the lumen.

Ceruminous glands are 'apocrine' glands, meaning the cellular product and portions of the free ends of glandular cells pinch off during secretion.

While the salivary glands are 'merocrine' in nature, meaning a fluid product is released through the cell membrane by exocytosis.