Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


d. A goblet cell is a unicellular exocrine gland that secretes mucus.

Verified step by step guidance

1. Identify the key components of the statement: 'goblet cell', 'unicellular', 'exocrine gland', and 'secretes mucus'.
2. Understand what a goblet cell is: Goblet cells are specialized epithelial cells found in the lining of the respiratory and intestinal tracts.
3. Determine if goblet cells are unicellular: Goblet cells are indeed unicellular, meaning they consist of a single cell.
4. Assess if goblet cells are exocrine glands: Goblet cells are classified as unicellular exocrine glands because they secrete substances onto epithelial surfaces.
5. Verify the secretion of goblet cells: Goblet cells secrete mucus, which is a gel-like substance that helps protect and lubricate surfaces.

Key Concepts

Goblet Cells

Goblet cells are specialized epithelial cells found in various mucosal tissues, primarily responsible for the secretion of mucus. They are classified as unicellular exocrine glands, meaning they consist of a single cell that releases its product directly onto the epithelial surface. This mucus plays a crucial role in protecting and lubricating the surfaces of organs such as the intestines and respiratory tract.

Exocrine Glands

Exocrine glands are glands that secrete their products through ducts to the external environment or into body cavities. Unlike endocrine glands, which release hormones directly into the bloodstream, exocrine glands produce substances like enzymes, sweat, and mucus. Goblet cells, as unicellular exocrine glands, exemplify this category by directly secreting mucus onto epithelial surfaces.

True/False Statements

True/false statements are assertions that can be evaluated for their accuracy. In the context of the question, determining whether the statement about goblet cells is true or false requires an understanding of their definition and function. If a statement is false, it must be corrected to reflect accurate information, which is essential for clear communication and understanding in scientific discourse.