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The basic functional unit of human kidney is ?
Henleโs loop
Nephron
Nephridia
Pyramid
Ornithine cycle (also known as the urea cycle) refers to the sequence of biochemical reactions taking place in the ?
Urinary bladder
Liver
Pancreas
Stomach
The hollow space at the centre of kidney where urine is collected after its formation is called ?
Renal pelvis
Glomerulus
Distal convoluted tubule
Urethra
The lungs are important organs for excretion of ?
Ammonia
Water
Carbon dioxide
Urea
The main nitrogen-containing waste excreted in urine is ?
Ammonia
Creatine phosphate
Nucleotides
Urea
The muscular tubes which take the urine from the kidneys to the bladder are ?
Urinary bladders
Ureters
Urethras
Nephrons
The process of dilution of urine takes place in ?
Distal tubule
Collecting tubule
Loop of Henle
Proximal tubule
The term haematuria is used to describe ?
Blood cancer
Presence of Red Blood cells in Urine
Internal bleeding
Blood poisoning
The yellow pigment derived from heme breakdown and excreted by kidneys is ?
Uric acid
Urochrome
Cholesterol
Melanin
Urea is produced as an excretory substance in human body in ?
Urinary bladder
Liver
Kidney
Rectum
Which one of the following statements in regard to the excretion by the human kidneys is correct ?
Ascending limb of Loop of Henle is impermeable to electrolytes
Descending limb of Loop of Henle is impermeable to water
Distal convoluted tubule is incapable of reabsorbing HCO3
Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules
Urea is transported by ?
Plasma
Blood
RBC
WBC
Excess amino acids in the body are broken down to form urea in ?
Kidney
Liver
Spleen
Pancreas
The concentration of urea is highest in ?
1. renal vein
2. hepatic portal vein
3. dorsal aorta
4. hepatic vein
The concentration of urea is least in ?
1. renal artery
2. renal vein
3. post canal
4. dorsal aorta
The function of the mammalian kidney is to excrete ?
If a man takes in large amount of proteins he is likely to secrete more amount of ?
The glomerular filtrate contains ?
In the distal convoluted tubule of the nephrons ?
The mechanism of uric acid secretion in the nephron is ?
Human kidney has ?
Uriniferous tubules are found in ?
Reabsorption of chloride ions from the glomerular filtrate in the kidney tubule is carried out by ?
Amount of blood passes through the kidney per minute is ?
Amount of water filtered by the kidneys per day is ?