there is a pair of been - shaped organs ' P ' in the human body towards the back, just above the waist. A waste product ' Q ' formed by the decomposition of unused proteins in liver is brought into organ ' P ' through blood by an artery ' R '. The numerous tiny filters ' S ' present in organ ' P ' clean the dirty blood goes into circulation through a vein ' T '. The waste substance ' Q ' and other waste Salts and excess water from a yellowish liquid ' U ' which goes from organ ' P ' into a bag like structure' V ' through two tubes ' W '. This liquid is then thrown out of the body through a tube ' X '.
a. what is ( i ) organ P and ( ii ) waste substance Q
b. Name ( i ) artery R and ( ii ) vein T
c. what are tiny filters S known as?
d. Name ( i ) liquid U ( ii ) structure V ( iii ) tubes W ( iv ) tube X
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The answer to the following questions and their sub-parts are:
a. (i) The organ P is kidneys.
(ii) The waste product Q is urea.
b. (i) The artery R is the Renal artery.
(ii) The vein T is Renal veins.
c. The tiny filter S in the kidney is the glomerulus.
d. (i) The liquid U is urine.
(ii) The bag structure V is the urinary bladder.
(iii) The tubes W is ureter.
(iv) Tube X is the urethra.
The human kidney purifies the blood and removes all the nitrogenous waste that is very harmful to the body.
- The main function of the kidney is to filter the blood and it is done in the glomerulus part.
- The minerals, vitamins, excess water is retained back and travel back to the blood and the harmful substances are filtered out and through the loop of Henle, it travels to the collecting tubules.
- The collecting tubule reaches the current which carries the urine to the urinary bladder and is then thrown out of the body by the opening called the urethra.
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