1) Which of the following is an example of excretion? a) Release of adrenaline from the adrenal gland. b) Release of sweat from the sweat glands. c) Removal of carbon dioxide from the lungs d) Removal of graces from the alimentary canal 2) What passes through the membranes of a kidney machine? a) Water and urea b) Water and protein c) Urea and red blood cells. d) Proteins and red blood cells 3) ... is a substance that has the same concerntration in dialysis fluid as in blood? a) Glucose b) Protein c) Salts d) Urea 4) How is a working kidney dialysis machine similar to a healthy kidney? a) It takes sugar molecules out of the blood b) It regulates the concerntration of the blood c) It delaminates amino acids to urea d) It removes large molecules from the blood. 5) What happens to blood as it passes through a kidney machine? a) Carbon dioxide is removed b) Glucose is added c) Oxygen is added d) Urea is removed 6) Where is urea produced? a) Bladder b) Blood cells c) Kidney d) Liver 7) Which substance is present in lower concerntration in the renal artery than in the renal vein? a) Amino acids b) Carbon dioxide c) Glucose d) Urea 8) Which substance is present in blood but not in the urine of a healthy person? a) Glucose b) Urea c) Salts d) Water 9) About 170 litres of fluid are filtered by the kidneys every day.only 1.5 litres are excreted in urine. What happens to the remaining 168.5 litres? a) It becomes tissue fluid b) It is stored in the bladder c) It is reabsorbed into the blood d) It is lost as sweat 10) Urea is produced in one organ, filtered from the blood by a second organ and stored inside a third organ before being expelled from the body. Which organ carry out these functions? a) Production in kidney, filteration in bladder, storage in liver b) Production in the kidneys, filtration in the liver, storage in the bladder c) Production in the liver, filtration in the bladder, storage in kidney d) Production in the liver, filteration in kidney, storage in bladder

Excretion.

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