Kidney Diagram A Level Biology. You on the other hand are going to have the damn honour of actually having a clue about how the brain and the kidneys freshen our blood up all the time. This tutorials covers the structure of the nephron a.

Free biology revision notes on the kidney. You will need to recall quite a lot of detail about the kidneys a nephron on the a level biology exam. 2 inches wide and 3 cm.
Kidneys are dark brown in colour and are embedded in a mass of fat.
The cortex is the dark outer layer this has a high density of capillaries as it is the site of blood filtration. 2 inches wide and 3 cm. The medulla has a high osmolarity because it contains lots of salt. Each kidney is about 10 to 13 cm 4 5 inches in long 6 cm.