Question

Which cells of "Crypts of Lieberkuhn" secrete antibacterial lysozyme ?

• A. Paneth cells
• B. Zymogen cells
• C. Kupffer cells
• D. Argentaffin cells

Answer 1

The Correct Option is A

The question asks which cells in the "Crypts of Lieberkühn" secrete antibacterial lysozyme. Let's explore the options and their roles:

1. Paneth cells
   • Located at the base of the "Crypts of Lieberkühn" in the small intestine.
   • Known for secreting lysozyme, an enzyme with antibacterial properties.
   • Lysozyme helps in controlling the growth of bacteria in the gut, thus playing a crucial role in maintaining intestinal flora.
2. Zymogen cells
   • Also known as chief cells, found in the stomach.
   • Secrete pepsinogen, which is converted into pepsin to aid in protein digestion.
   • Not known for secreting lysozyme.
3. Kupffer cells
   • These are specialized macrophages located in the liver.
   • Primarily involved in the breakdown of red blood cells and the immune response.
   • Do not secrete lysozyme.
4. Argentaffin cells
   • Found in the lining of the gastrointestinal tract.
   • Responsible for secreting serotonin and other hormones.
   • Not involved in lysozyme secretion.

Based on the above analysis, the correct option is Paneth cells as they are specifically involved in the secretion of lysozyme, providing an antibacterial function in the gut.