2.68 Excretion and Osmoregulation in the Kidneys
- The Kidney excretes a molecule called Urea
- Contains Nitrogen
- Toxic to the body
- Cannot be stored
- From Amino Acids
- Blood circulates to the Liver
- Amno Acids in the blood are broken down in the liver
- Produces Urea
- Then transports to the Kidneys
- Filters Urea out of the blood
- Water added
- Urea no out of the body
- Osmoregulation-
- Osmo (Osmosis)
- Regulation (To control)
- To control Osmosis
- Tissue Fluids surrounding the cells must be Isotonic with the cytoplasm of the cells
- Water in = Water out
- Cells remain their function and shape
- Danger of Blood circulating into the tissue-
- Hypertonic (Concentrited) -
- Hypotonic (Dilute) -
- Removes to much water
- Not enough in the cell
- Isotonic conditions
- Archived by controlling composition of blood
- Blood forms the tissue fluid
- Kidney controls the composition
- Excess water and salts are removed
No comments:
Post a Comment