Excretory substance is ammonia in:
A.Camel
B.Cartilagenous fishes
C.Whale
D.Fresh water fishes
Category: Excretion Physiology Mcqs
Capsular pressure in human kidney is equal to:
A.18mm Hg
B.28mm Hg
C.38mm Hg
D.48mm Hg
Which of these is actively secreted in the glomerular filtrate of kidney tubule:
A.Potassium ions
B.Sodium ions
C.Amino acid
D.Chloride ions
Urea forming cycle in the liver of ureotelic animals is called:
A.Ornithine cycle
B.Kreb Henseleit, cycle
C.Kreb’s ornithine cycle
D.All of these
Birds are uricotelic because:
A.They have to remove a lot of water
B.They have to conserve water which can be done only by its insoluable nature and property of safe retention in the body
C.They havd to conserve heat in their body
D.They have to do away with heat
In biochemical phase of excretion, the ammonia is formed by:
A.Deamination of excess of amino acids
B.Transmination of excess of amino acids
C.Decarboxylation of excess of amino acids
D.None of these processes
Collecting part of the tubule has:
A.Permeability to water
B.Impermeability to water
C.Semipermeability to water
D.None of these
Amount of urine in our body is regulated by:
A.ADH from pituitary
B.Aldosterone from adrenal glands
C.Both of these hormones
D.None of these hormones
In which of these respects the glomerular filtrate is different than blood plasma:
A.In presence of erythrocytes
B.In presence of WBCs
C.In presence of proteins
D.In all of these
Pressure of the blood flowing through peritubular capillaries of tubule is very slow and equal to:
A.13mm Hg
B.5mm Hg
C.10mm Hg
D.7mm Hg
