(d) Filtration of blood takes place at Malpighian body.
Malpighian body or corpuscle comprises of glomerulus and Bowman’s capsule. Filtration of blood takes place in glomerulus through glomerular filtration.
In which blood enters in the glomerules through an afferent arteriole and leaves it through efferent arteriole.
Proximal Convoluted Tubule (PCT), is lined by cuboidal epithelium cells bearing
brush border and allows the reabsorption of salts by active transport.
Distal Convulated Tubule (DCT), allows conditional reabsorption of Na* and water and selective secretion of H ,K+, NH3 to maintain pH and Na — balancein blood.
Collecting Duct extends from cortex of kidney to the inner part of medulla. Large amount of water is reabsorbed from this region to produce the concentrated urine.
