Qstnid -C-7- Differentiate Between The Following Pairs Of Terms: (A) Bowman's Capsule And Malpighian Capsule. (B) Renal Cortex And Renal Medulla (C) Renal Pelvis And Renal Papilla (D) Urea And Urine (E) Excretion And Katabolism - 07: The Excretory System

with Solutions - page 3

#7
Differentiate between the following pairs of terms: (a) Bowman's capsule and malpighian capsule. (b) Renal cortex and renal medulla (c) Renal pelvis and renal papilla (d) Urea and urine (e) Excretion and katabolism
Ans : (a) Bowman's capsule is a thin walled cup containing the glomerulus. This Bowman's capsule along with the glomerulus is known as malpighian capsule. (b) The renal cortex is the outer darker region of the kidney whereas the renal medulla is the
inner lighter region of the kidney. (c) Renal pelvis is the expanded front end of the ureter in the kidney whereas the renal papilla is the apex of the renal pyramid which projects into the pelvis. (d) Urea is the chief excretory product which is excreted in the form of urine whereas urine is
the filtrate left after reabsorption and tubular secretion which contains 95% water and 5% solid wastes. (e) Excretion is the process of removal of chemical wastes especially nitrogenous wastes from the body. Catabolism on the other hand is the set of metabolic pathways which break down molecules into smaller units and release energy.

#7-a
Bowman's capsule and malpighian capsule.
Ans : Bowman's capsule is a thin walled cup containing the glomerulus. This Bowman's capsule along with the glomerulus is known as malpighian capsule.

#7-b
Renal cortex and renal medulla
Ans : The renal cortex is the outer darker region of the kidney whereas the renal medulla is the
inner lighter region of the kidney.

#7-c
Renal pelvis and renal papilla
Ans : Renal pelvis is the expanded front end of the ureter in the kidney whereas the renal papilla is the apex of the renal pyramid which projects into the pelvis.

#7-d
Urea and urine
Ans : Urea is the chief excretory product which is excreted in the form of urine whereas urine is
the filtrate left after reabsorption and tubular secretion which contains 95% water and 5% solid wastes.

#7-e
Excretion and katabolism
Ans : Excretion is the process of removal of chemical wastes especially nitrogenous wastes from the body. Catabolism on the other hand is the set of metabolic pathways which break down molecules into smaller units and release energy.