Kidney Anatomy and Excretion
Questions covering renal physiology, kidney structure, urine formation, and excretory processes in various organisms
Questions
Water is not reabsorbed in
- proximal convoluted tubule
- descending limb of loop of Henle
- ascending limb of loop of Henle
- distal convoluted tubule
The blood leaves the glomerulus through
- afferent arteriole
- efferent arteriole
- renal veins
- renal portal veins
Elevation of BP is most likely to be caused by
- rennin
- renin
- urea
- ketone bodies
Vitamin excreted by urine in higher vertebrates is
- A
- D
- K
- C
In public urinals, the urine gives a pungent smell due to
- the conversion of both urea and uric acid into ammonia
- the conversion of uric acid into ammonia by ornithine cycle
- the conversion of urea into ammonia by bacteria
- None of these
Separation of amino acid into amino and carboxyl group is known as
- deamination
- excretion
- amination
- egestion
There is no sugar in urine. The blood entering the kidney has more sugar than leaving the kidney because
- sugar is used by kidney cells in metabolism
- sugar is absorbed by bladder
- sugar is absorbed by proximal convoluted tubule
- sugar is absorbed in loop of Henle
Micturition is possible only if the muscles of urinary bladder contract and
- urethra contracts
- urethra relaxes
- ureter contracts
- ureter relaxes
Which of the following options is never the function of the kidney?
- pH regulation
- Mineral level regulation
- Erythropoiesis
- Urea formation
The human kidneys are
- opisthonephric
- pronephric
- mesonephric
- metanephric
In the human kidney, the glomeruli are limited to
- cortex
- medulla
- pyramidal tissue
- all over the kidney
In the kidney, glucose is mainly absorbed in the
- Bowman’s capsule
- loop of Henle
- proximal convoluted tubule
- distal convoluted tubule
Which of the following enzymes helps in the production of urea?
- Uricase
- Urease
- Arginase
- None of these
In which organ of the body, is the insoluble calcium phosphate eliminated?
- Liver
- Kidneys
- Lungs
- Large intestine
In man which blood vessel takes away blood from the kidney?
- Afferent arteriole
- Efferent arteriole
- Renal vein
- Renal portal vein
In cockroach, the excretory product is
- ammonia
- uric acid
- urea
- Both 1 and 3
The undigested food in Hydra is expelled from
- cloaca
- anus
- mouth
- general body surface
In marine telecost fish, Na+ and CI– ions are excreted by
- gills
- kidneys
- neuromast organs
- scroll valve
The Bowman’s capsule is
- a part of uriniferous tubule and is the site of filtration of various blood constituents during the formation of urine
- a part of uriniferous tubule and is the site of reabsorption of water and glucose
- present in the liver and is the site of secretion of the bile juice
- associated with liver and is the site of the storage of the bile juice
The Malpighian corpuscle lies in the
- medulla
- liver
- cortex
- pelvis