Mention at least three functions of kidney.
Kidney:
Three functions of the kidney:
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the questions that follow.
(a) Define excretion.
(b) Name the functional units of the kidneys.
(c) Why does the cortex of the kidney show a dotted appearance?
(d) Mention two functions of the kidney.
(e) Write two differences in the composition of the blood flowing through the blood vessels, 'A' and 'B'.
Define plasma. Mention at least two functions of blood plasma.
Mention the role of hilum in kidney.
Mention the location of kidney in humans.