This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 19 Excretory Products And Their Elimination – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Column of Bertin is an extension of A) Renal capsule into the cortex. B) Cortex into medulla. C) Renal pelvis into the renal sinus. D) Medulla into cortex. Show Answer Correct Answer: B) Cortex into medulla. 2. PCT helps to maintain the pH and ionic balance of body fluids by- A) Selective secretion of H$^{+}$, NH$_{3 }$and K$^{+}$ ions in filtrate. B) Reabsorption of HCO$_{3}$$^{-}$ from filtrate. C) Both a and b. D) Secreting regulatory hormone like renin and angiotensinogen. Show Answer Correct Answer: C) Both a and b. 3. Sebaceous glands Eliminate A) Sterols. B) Hydrocarbons. C) Waxes. D) All. Show Answer Correct Answer: D) All. 4. Kidney stones are produced due to deposition of ..... and ..... A) Silicates and uric acid. B) Minerals, water. C) Silicates, calcium carbonates. D) Uric acid, calcium oxalate. Show Answer Correct Answer: D) Uric acid, calcium oxalate. 5. Which one of the following characteristics iscommon both in humans and adult frogs? A) Ureotelic mode of excretion. B) Four chambered heart. C) Internal fertilisation. D) Nucleated RBCs. Show Answer Correct Answer: A) Ureotelic mode of excretion. 6. In which of the following organisms malpighian tubule is found? A) Frog. B) Honey Bee. C) Rabbit. D) Ascaris. Show Answer Correct Answer: B) Honey Bee. 7. Minimum reabsorption occurs in this segment. A) DCT. B) Collecting duct. C) PCT. D) Loop of Henle. Show Answer Correct Answer: D) Loop of Henle. 8. Protonephridia are excretory structures in A) Platyhelminths. B) Rotifers. C) Some annelids. D) Cephalochordate. E) All of the above. Show Answer Correct Answer: E) All of the above. 9. Which of the following is not a function of kidney? A) Regulation of acidity in fluids. B) Removal of urea. C) Regulation of blood pressure. D) Secretion of antibiotics. Show Answer Correct Answer: D) Secretion of antibiotics. 10. Which factor help in maintaining an increasing osmolarity towards the inner medullary interstitium? A) The proximity between the Henle's loop and vasa recta. B) Countercurrent flow. C) Both of them. D) None of them. Show Answer Correct Answer: C) Both of them. 11. Which of the following statements about proximal convoluted tubule (PCT) is false? A) It is lined by simple cuboidal brush border epithelium which increases the surface area. B) Nearly all the essential nutrients, 70-80% electrolytes, 70% H$_{2}$O are reabsorbed by PCT. C) PCT is not the site of selective secretion. D) PCT helps to maintain the pH and ionic balance of body fluids. Show Answer Correct Answer: C) PCT is not the site of selective secretion. 12. Which one of the following statements is correct with respect to kidney function regulation A) Exposure to cold temperature stimulates ADH release. B) When someone drinks lot of water ADH is suppressed. C) During summer when body looses lot of water by evaporation, The release of ADH is suppressed. D) An increase in glomerular blood flow stimulates formation of Angiotensin II. Show Answer Correct Answer: B) When someone drinks lot of water ADH is suppressed. 13. The glomerular capillaries cause filtration of blood through ..... layers- A) 3. B) 1. C) 2. D) 6. Show Answer Correct Answer: A) 3. 14. Animals accumulate following products produced either by metabolic activities or excessive ingestion A) Ammonia, Urea, uric acid. B) Carbon dioxide and water. C) Ions like Na, k, Cl, phosphate, Sulphates etc. D) All of the above. Show Answer Correct Answer: D) All of the above. 15. The normal value of GFR is approximately ( A) 650 ml/min. B) 125 ml/min. C) 180 ml/min. D) 180 ml/day. Show Answer Correct Answer: B) 125 ml/min. 16. Vertebrates have complex tubular organs for excretion of waste products like A) Pancreas. B) Jejunum. C) Duodenum. D) Kidneys. Show Answer Correct Answer: D) Kidneys. 17. The concentration gradient in the medullary interstitium is mainly caused by A) NaCl and HCO3-. B) Urea and HCO3-. C) NaCl and Urea. D) None. Show Answer Correct Answer: C) NaCl and Urea. 18. JGA is a special sensitive region formed by cellular modifications in the ..... and the ..... at the location of their contact. A) Distal convoluted tubule, afferent arteriole. B) Proximal convoluted tubule, afferent arteriole. C) Proximal convoluted tubule, efferent arteriole. D) Distal convoluted tubule, efferent arteriole. Show Answer Correct Answer: A) Distal convoluted tubule, afferent arteriole. 19. In which part of the Nephron 70-80 % of Electrolytes and water reabsorption take place? A) Henle's loop. B) Distal convoluted tubule. C) Proximal convoluted tubule. D) Collecting duct. Show Answer Correct Answer: C) Proximal convoluted tubule. 20. In which of the following locations is filtrate osmolarity highest? A) End of Proximal Convulated Tubule. B) Beginning of Distal Convulated Tubule. C) End of Distal Convulated Tubule. D) Tip of the Loop of Henle. Show Answer Correct Answer: D) Tip of the Loop of Henle. 21. Dialysis fluid contain all the constituents as in plasma except A) Glucose. B) Protein. C) Nitrogenous waste. D) Salt. Show Answer Correct Answer: C) Nitrogenous waste. 22. On average, ..... ml of blood is filtrated by the kidney per minute which constitute roughly ..... of the blood pumped out by each ventricle of heart in a minute A) 5 L, 1/10th. B) 100-125 ml, 1/6th. C) 125 ml, 1/6th. D) 1100-1200 ml, 1/5th. Show Answer Correct Answer: D) 1100-1200 ml, 1/5th. 23. Which one of the four parts mentioned below doesnot constitute a part of single uriniferous tubule? A) Loop of Henle. B) Collecting duct. C) Distal convoluted tubule. D) Bowman's capsule. Show Answer Correct Answer: B) Collecting duct. 24. Processing of filtrate in the proximal and distal tubules accomplishes what important function? A) Converting toxic ammonia to less toxic urea. B) Maintaining a constant pH in body fluids. C) Regulating the speed of blood flow through the nephron. D) Sorting plasma proteins according to size. Show Answer Correct Answer: B) Maintaining a constant pH in body fluids. 25. Reabsorption of Bicarbonate ion takes place from which part of nephron? A) Henley's loop. B) Collecting duct. C) PCT. D) DCT. Show Answer Correct Answer: D) DCT. 26. Which group possess excretory structures known as protonephridia? A) Earthworms. B) Vertebrates. C) Insects. D) Flatworms. Show Answer Correct Answer: D) Flatworms. 27. The principal nitrogenous excretory compound inhumans is synthesised A) In kidneys but eliminated mostly through liver. B) In kidneys as well as eliminated by kidneys. C) In the liver, but eliminated mostly throughkidneys. D) In liver and also eliminated by the same throughbile. Show Answer Correct Answer: C) In the liver, but eliminated mostly throughkidneys. 28. The renal fluid isotonic to the cortical fluid and blood is found in A) Collecting duct and ascending duct. B) Distal convoluted tubule and ascending limb. C) The proximal convoluted tubule and distal convoluted tubule. D) The ascending limb and descending limb. Show Answer Correct Answer: C) The proximal convoluted tubule and distal convoluted tubule. 29. The maximum amount of electrolytes and water(70-80 percent) from the glomerular filtrate isreabsorbed in which part of the nephron? A) Descending limb of loop of Henle. B) Ascending limb of loop of Henle. C) Distal convoluted tubule. D) Proximal convoluted tubule. Show Answer Correct Answer: D) Proximal convoluted tubule. 30. What is the main component of urine? A) Water. B) Creatinine. C) Sodium. D) Urea. Show Answer Correct Answer: A) Water. 31. Which one of the following is a tube that carries urine from kidney to the urinary bladder? A) Ureter. B) Uvula. C) Urethra. D) Loop of Henle. Show Answer Correct Answer: A) Ureter. 32. Which of the following are about 90% absorbed in the nephron? A) Glucose and amino acids-Active process. B) Glucose and amino acids-Passive process. C) Cl$^{-}$, NH$_{3}$, K$^{+}$-Passive process. D) Cl$^{-}$, NH$_{3}$, K$^{+}$-Active process. Show Answer Correct Answer: A) Glucose and amino acids-Active process. 33. In mammals, which blood vessel would normally carry largest amount of urea? A) Dorsal Aorta. B) Hepatic Vein. C) Renal Vein. D) Hepatic Portal Vein. Show Answer Correct Answer: B) Hepatic Vein. 34. What substance is secreted by the proximal-tubule cells and prevents the pH of urine from becoming too acidic? A) Ammonia. B) Salt. C) Glucose. D) Bicarbonate. Show Answer Correct Answer: A) Ammonia. 35. The blood from the glomerulus is carried away by: A) 1. Afferent arteriole. B) 4. Renal vein. C) 2. Efferent arteriole. D) 3. Peritubular capillary network. Show Answer Correct Answer: C) 2. Efferent arteriole. 36. Glucose is taken back from glomerular filtratethrough A) Passive transport. B) Active transport. C) Diffusion. D) Osmosis. Show Answer Correct Answer: B) Active transport. 37. What is a glomerulus? A) . a mass of nephrons. B) A long, straight absorptive fiber. C) A mass of capillaries. D) A set of tubules. Show Answer Correct Answer: C) A mass of capillaries. 38. What happens to the glomerular filtration rate (GFR) when blood pressure increases? A) It remains the same. B) It decreases. C) It fluctuates. D) It increases. Show Answer Correct Answer: D) It increases. 39. Accessory excretory human organ is A) Skin and stomach. B) Skin and heart. C) Lungs and appendix. D) Skin, lungs, liver and intestine. Show Answer Correct Answer: D) Skin, lungs, liver and intestine. 40. The mechanism of urine formation in nephron involves A) Ultrafiltration. B) Secretion. C) Osmosis. D) Diffusion. Show Answer Correct Answer: A) Ultrafiltration. 41. The GFR / day in a healthy adult is- A) 5L. B) 180 L. C) 20 L. D) 200 L. Show Answer Correct Answer: B) 180 L. 42. What is the significance of the counter current mechanism in the kidneys? A) Facilitates filtration. B) Maintains osmolarity gradient. C) Increases blood flow. D) Reduces urine output. Show Answer Correct Answer: B) Maintains osmolarity gradient. 43. Which of the following does not favours the formation of large quantities of dilute urine? A) Renin. B) Atrial Natriuretic Factor. C) Caffine. D) Alcohol. Show Answer Correct Answer: A) Renin. 44. In which parts of the Nephron secretion and Reabsorption of urea take place? A) Ascending limb DCT. B) Collecting tubule & Descending limb. C) Ascending limb and collecting tubule. D) Ascending limb & Descending limb. Show Answer Correct Answer: C) Ascending limb and collecting tubule. 45. In nephrons, there is the complete absorption of A) Water. B) Urea. C) Glucose. D) Salt. Show Answer Correct Answer: C) Glucose. 46. What is the primary nitrogenous waste product excreted by mammals? A) Uric Acid. B) Ammonia. C) Nitrogen. D) Urea. Show Answer Correct Answer: D) Urea. 47. Malpighian body (or) renal corpuscle includes? A) Bowmen's capsule and glomerulus. B) Glomerulus and efferent arteriole. C) Double walled Bowmen's capsule only. D) Bowmen's capsule and efferent arteriole. Show Answer Correct Answer: A) Bowmen's capsule and glomerulus. 48. The proximal convoluted tubule is lined by the: A) 4. Simple columnar brush bordered epithelium. B) 1. Simple cuboidal epithelium. C) 3. Simple cubodial brush bordered epithelium. D) 2. Simple columnar epithelium. Show Answer Correct Answer: C) 3. Simple cubodial brush bordered epithelium. 49. Excretion is one of the major ways the body maintains homeostasis. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 50. Haematuria specifies A) Urine in blood. B) Blood in urine. C) Urea in blood. D) None. Show Answer Correct Answer: B) Blood in urine. 51. Match the items of Column-I with those of Column-II. Column-I Column-II (a) Ammonotelism (i) Birds (b) Micturition (ii) Water Reabsorption (c) Uricotelism (iii) Bony fish (d) ADH (iv) Urinary Bladder A) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i). B) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii). C) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii). D) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i). Show Answer Correct Answer: B) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii). 52. Urine follows which of the following pathways? A) Collecting ducts of the kidneys, bladder, ureters, urethra. B) Collecting ducts of the kidneys, urethra, bladder, ureters. C) Bladder, collecting ducts of the kidneys, ureters, urethra. D) Collecting ducts of the kidneys, ureters, bladder, urethra. Show Answer Correct Answer: D) Collecting ducts of the kidneys, ureters, bladder, urethra. 53. Which of the following pairs is wrong? A) Uricotelic-Birds. B) Ammonotelic-Tadpoles. C) Ureotelic-Elephants. D) Ureotelic-Insects. Show Answer Correct Answer: D) Ureotelic-Insects. 54. NaCl is transported by the ascending limb of Henle's loop which is exchanged with? A) Descending limb of Henley's loop. B) Descending limb of Vasa recta. C) Ascending limb of Vasa recta. D) None. Show Answer Correct Answer: B) Descending limb of Vasa recta. 55. NaCl is returned to the ..... by the ascending limb of vasa recta- A) PCT. B) Ascending limb of Henle's loop. C) DCT. D) Interstitial fluid of medulla. Show Answer Correct Answer: D) Interstitial fluid of medulla. 56. Removal of proximal convoluted tubule from the nephron will result in A) More diluted urine. B) More concentrated urine. C) No changes in quality and quantity of urine. D) No urine formation. Show Answer Correct Answer: A) More diluted urine. 57. The reabsorption of water in the kidneys is under the control of a hormone- A) LH. B) ACTH. C) ADH / Vasopressin. D) STH. Show Answer Correct Answer: C) ADH / Vasopressin. 58. The kidneys filter urea from your ..... A) Blood. B) Food. C) Digestive enzymes. D) Bile. Show Answer Correct Answer: A) Blood. 59. Which organs help to remove waste from the body? A) Lungs, stomach, bladder, and kidneys. B) Lungs, heart, bones, and bladder. C) Lungs, large intestine, bladder and kidneys. D) Lungs, esophagus, bladder and kidneys. Show Answer Correct Answer: C) Lungs, large intestine, bladder and kidneys. 60. The part of nephron involved in active reabsorption of sodium is (d) descending limb of Henle's loop A) Bowman's capsule. B) Proximal convoluted tubule. C) Distal convoluted tubule. D) Bowman's capsule. Show Answer Correct Answer: B) Proximal convoluted tubule. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 1Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 3Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 4Class 11 Biology Chapter 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division QuizClass 11 Biology Chapter 11 Transport In Plants QuizClass 11 Biology Chapter 12 Mineral Nutrition QuizClass 11 Biology Chapter 13 Photosynthesis In Higher Plants Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books