Final answer:
Different liver structures use specific enzymes to break down macromolecules. Hepatocytes break down carbohydrates, Kupffer cells break down proteins, and hepatic cells break down lipids.
Step-by-step explanation:
The liver is a vital organ that performs a variety of functions, including the breakdown of macromolecules. Different structures within the liver use specific enzymes to break down different macromolecules. Here are the enzymes used by each liver structure and the macromolecules they help break down:
- Hepatocytes: Hepatocytes are the main cells of the liver and are responsible for many liver functions. They use enzymes such as amylase, sucrase, lactase, and maltase to break down carbohydrates.
- Kupffer cells: Kupffer cells are specialized immune cells found in the liver. They produce enzymes like pepsin and peptidase, as well as hydrochloric acid, to break down proteins.
- Hepatic cells: Hepatic cells are responsible for the production and secretion of bile. Bile contains enzymes called lipases, which break down lipids.
These enzymes help break down macromolecules into smaller molecules that can be easily absorbed by cells and provide energy for various cellular activities.