JAMB - Biology (2006 - No. 10)

Which of the following produces both hormones and enzymes
lleum
pancreas
gall bladder
kidney

Explanation

The pancreas is a mixed gland, meaning it produces both hormones (like insulin and glucagon) and enzymes (like amylase, lipase, and trypsin). 

  • Exocrine Function (Enzymes):

    The pancreas's exocrine tissue produces digestive enzymes that are released into the pancreatic duct, which then transports them to the small intestine to aid in digestion. These enzymes include: 
    • Amylase: Breaks down carbohydrates. 
    • Lipase: Breaks down fats. 
    • Protease (trypsin and chymotrypsin): Breaks down proteins. 
  • Endocrine Function (Hormones):

    The pancreas's endocrine tissue, specifically the islets of Langerhans, produces hormones that are released directly into the bloodstream. The main hormones produced are: 
    • Insulin: Lowers blood sugar levels. 
    • Glucagon: Raises blood sugar levels. 

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