Question
Biology Question on excretory system
Structural unit of human kidney is
A
nephron
B
ureter
C
loop of Henle
D
Bowman?s capsule
Answer
nephron
Explanation
Solution
Nephron is the structural and functional unit of vertebrate kidney, comprising a malpighian body (glomerulus & Bowman?s capsule) & a uriniferous tubule. It extracts wastes from the blood. Ureter are pairs of narrow tubes which conduct the urine from the kidneys to bladder. Loop of Henle?s are U-shaped part of nephron of kidney & is the seat of counter-current mechanisms which makes the urine hypertonic. Bowmans capsules are cup-shaped end of uriniferous tubule of the kidney. It surrounds a knot of blood capillaries (glomerulus) & together they form a malpighian body.