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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 Organ 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 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, and (Iv) Tube X. - Science and Technology 2

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 organ 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 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, and (iv) tube X.

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Solution

(a)
(i)  Kidneys are bean shaped organs in the human body, towards the back of the body, just above the waist. Hence, organs P are kidneys.
(ii)  Urea is the waste product that is formed by the decomposition of unused proteins in the liver. Hence, the waste substance Q represents urea. 

(b)
(i) Urea (substance Q) is brought into kidney (organ P) through blood by an artery called renal artery. Hence, R represents renal artery.
(ii) The numerous tiny filters called nephrons (S) present in the kidneys (organ P), clean the dirty blood by removing the waste product Q (urea). The clean blood then goes into circulation through T, i.e. renal vein. Hence, vein T represents the renal vein.

(c) The tiny filters S are known as nephrons.

(d) The waste substance Q (urea), other waste salts and excess water form a yellowish liquid called urine (U). Urine goes from organ P (kidney) into a bag-like structure V, i.e. urinary bladder, through two tubes W, called ureters. This urine is then thrown out of the body     through tube X, called urethra.
Hence, (i) the liquid U is urine, (ii) structure V is urinary bladder, (iii) tubes W is ureters, and (iv) tube X is the urethra.

  Is there an error in this question or solution?
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APPEARS IN

Lakhmir Singh Class 10 Biology (Science)
Chapter 1 Life Processes
Q 100 | Page 76
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