The cell membrane is the part of the cell that controls what enters and leaves the cell. It allows nutrients to come in and wastes to move out.
Substances like waste products (e.g., urea, creatinine), excess ions (e.g., sodium, potassium), and water are normally filtered out of the bloodstream in the nephron as part of the formation of urine.
The blood plasma is the liquid part of the blood. It is the part of the circulatory system made up primarily of water, nutrients, and wastes.
The urinary system rids the body of nitrogen containing wastes. The kidneys filter the wastes from the bloodstream and produce urine which then travels through the rest of the urinary system to be eliminated from the body.
vacuole
biodiversity
You breathe in through your nostrils or mouth, which allows air to enter your respiratory system and reach your lungs where oxygen is absorbed into the bloodstream.
Most water reabsorption in the body occurs in the proximal convoluted tubule of the kidney. This is the first part of the nephron where water is reabsorbed back into the bloodstream.
The Vacuoles.
We humans, use urea to get rid of nitrogenous wastes which is a water-soluble compound. Other animals might use Uric acid, which is not water soluble. It is mainly used to conserve water.Uric acid uses less water to get rid of wastes in an animal. This is because it's physical properties change, it turns into this paste that can bring wastes out of an animal without using as much water. The uric acid is the white part of bird poop.
Water is usually part of any biochemical reaction.Water is an essential component to blood which circulates essential nutrients to cells and removes wastes and toxins.
phosphate groups