Question

1. which of the following are functions of pseudostratified epithelium?

protection
secretion
mucus
movement of sex cells
making enzymes

Explanation:

• Protection: Pseudostratified epithelium (e.g., in respiratory tract) protects underlying tissues from abrasion, pathogens, etc.
• Secretion: Cells in pseudostratified epithelium (like goblet cells) secrete substances (e.g., mucus).
• Mucus: Goblet cells in pseudostratified epithelium secrete mucus, which traps particles and lubricates.
• Movement of sex cells: In the reproductive tract (e.g., epididymis), pseudostratified epithelium helps move sex cells via cilia.
• Making enzymes: Pseudostratified epithelium is not primarily involved in enzyme production (enzymes are made by glandular cells/other tissues). So "Making enzymes" is incorrect.

Answer:

• Protection (correct)
• Secretion (correct)
• Mucus (correct, as secretion of mucus is a function)
• Movement of sex cells (correct)
• Making enzymes (incorrect)