Question

Differentiate between

(i) Excretion and defaecation

(ii) PCT and DCT in a nephron

(iii) Cortex and medulla

Answer 1

(i) Differentiate between excretion and defaecation:-

Excretion	Defaecation
1.Excretion is the removal of nitrogen-containing merchandise from the metabolism	1.Defecation is the whole removal of undigested meals and different waste products.
2.The respiration machine gets rid of the Nitrogen withinside the air, and excretion gets rid of the nitrogen in meals and different merchandise via sweat, urine, and now and again feces at the same time.	2.Defecation is the elimination of all of the waste and undigested meals out of the alimentary canal via the anus.

(ii) Differentiate between PCT and DCT in a nephron:-

PCT	DCT
1.PCT happens after the Bowman’s tablet at the same time.	1.DCT happens after the loop of Henle.
2.PCT is particularly concerned with reabsorption while secretion happens in DCT.	2.The essential distinction between PCT and DCT is that PCT is the feature of every part of the nephron.

(iii) Differentiate between Cortex and medulla:-

Cortex	Medulla
1.The renal cortex is the outer region of the kidney that contains blood vessels connected to the nephrons	1.The renal medulla is the inner region of the kidney that contains 8-12 renal pyramids.