Hi, I have a question and I hope anyone could answer it:
An example of filtration occurs in the kidney and:
Plasma proteins filter from the capillary into the kidney tubule.
Ions and glucose filter from the capillary into the kidney tubule.
White blood cells filter from the kidney tubule into the capillary.
Red blood cells filter from the capillary into the kidney tubule.
This filtration across the capillary is an active process.
Answer:
Glomerular filtration is the first step in making urine. It is the process that your kidneys use to filter excess fluid and waste products out of the blood into the urine collecting tubules of the kidney, so they may be eliminated from your body.