Process eliminating nitrogenous and other excretory substances is termed:
A.Nutrition
B.Respiration
C.Circulation
D.Excretion
Category: Excretion Physiology Mcqs
Excretion of nitrogenous wastes mainly in form of uric acid in the birds is an example of:
A.Conservation of heat
B.Conservation of water
C.Elimination of water
D.Elimination of heat
Transport of urea is done by:
A.Plasma
B.RBCs regulation
C.WBCs
D.Haemoglobin
Glomerula pressure in human kidney is:
A.45-75mm Hg
B.55-75mm Hg
C.65-75mm Hg
D.70-75mm Hg
Excretory product of insects is:
A.Uric acid
B.Fatty acids
C.Amino acid
D.Guanine
In the ornithine cycle the enzyme arginase breaks down arginine into:
A.Citruline and urea
B.Ornithine and ammonia
C.Citruline and ornithine
D.Ornithine and urea
Guanine is formed as excretory waste in:
A.Spiders
B.Rabbit
C.Man
D.All of these
Out of 180 litres of plasma filtered out each day by tubules in our kidneys we form which of these amounts as urine:
A.0.5 litres
B.0.75 litres
C.0.95 litres
D.1.45 litres
Diuresis is a condition when we excrete diluted urine, the osmolality of this urine is:
A.50ml osmol/litre of water
B.65ml osmol/litre of water
C.75ml osmol/litre of water
D.None of these
Ultrafiltration occurs in a glomerulus when:
A.Hydrostatic pressure exceeds the osmotic pressure
B.Osmotic pressure exceeds the hydrostatic pressure
C.Capsular osmotic pressure exceeds the glomerular hydrostatic pressure
D.Colloidal osmotic pressure plus capsular pressure remain less than glomerular hydrostatic pressure
