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There is a pair of bean-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 the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organs P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form 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 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, and (iv) tube X.
(a) (i) Organ P is Kidneys.
Explanation: Kidneys are a pair of bean-shaped organs in the human body towards the back, just above the waist.
(ii) Waste substance Q is Urea.
Explanation: A waste product Urea is formed by the decomposition of unused proteins in the liver is brought into the organ Kidney through blood by an artery Renal Artery.
(b) (i) Artery R is the Renal artery
Explanation: A waste product Urea is formed by the decomposition of unused proteins in the liver is brought into the organ Kidney through blood by an artery Renal Artery. Hence R is Renal Artery
(ii) Vein T is the Renal vein.
Explanation: The numerous tiny filters Nephron (S) present in organs Kidney ( P ) clean the dirty blood by removing the waste product Urea ( Q ). The clean blood goes into circulation through a vein T called Renal Vein
(c) Tiny filters S is known as Nephrons.
(d) (i)Liquid U is Urine
(ii) Structure V is Bladder
(iii) Tubes W is Ureters
(iv) Tube X is Urethra
Explanation: The waste substance Urea (Q), other waste salts, and excess water form a yellowish liquid Urine (U) which goes from the kidney (organ P) into a bag-like structure Bladder (V) through two tubes Ureter (W). This liquid is then thrown out of the body through Urethra (tube X).
(Refer image for better understanding)
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