List of top Biology Questions on Human Excretory System

Arrange the meninges in order from outer to inner:
____ functions as filtration unit.
The secondary function of lungs to carry out excretion is ____ .
In which organ formation of urea takes place?
Excretory organs present in Nematoda are ____ .
The given figure represents the Malpighian body. Identify the labelled parts AA to DD and select the correct option
Human urine contains
The part of nephron involved in active reabsorption of sodium is
The ornithine cycle occurs in the
Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?
Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/ or functions
human urinary system with structures labelled A to D
Which of the following activates JG cells to release renin?
Least quantity of urea is found in
The maximum amount of electrolytes and water (70−8070 - 80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron?
The pressure which favours filtration of blood in the kidney and the one which opposes the filtration of blood are ______and_____ respectively.
The peritubular capillaries of the nephron arise from the
Glomerular filtrate contains
The reabsorption of water in the kidney is under the control of
The principal nitrogenous excretory compound in humans is synthesised
Reabsorption of chloride ions (Cl) occurs in which part of the kidney?
Secreting hypotonic urine is effective in reducing urinary loss of water. Hypotonic urine is more concentrated and higher in osmotic pressure than the blood.
Haemodialysis helps in patient having:
Glomerular hydrostatic pressure is present in
ADH controls water permeability of
In living beings ammonia is converted into urea through: