This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 19 Excretory Products And Their Elimination – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Statement I-Ascending limb of Henley's loop is permeable to electrolytes.Statement II-Potassium and Hydrogen ions are selectively secreted from DCT and collecting duct into the filtrate. A) Both the statements are correct. B) Both the statement are incorrect. C) Only Statement I is correct. D) Only Statement II is incorrect. Show Answer Correct Answer: A) Both the statements are correct. 2. Assertion:Nephridia found in earthworms and other annelids. Reason:Nephridia help to remove nitrogenous wastes and maintain osmoregulation.1. Both assertion and reason are true and reason is its correct explanation2. Both assertion and reason are correct but reason is not its correct explanation3. Assertion is correct but reason is false4. Both assertion and reason are false A) 2. B) 1. C) 4. D) 3. Show Answer Correct Answer: B) 1. 3. The layers between the blood in glomerular capillary and Bowman's space are- A) Endothelium of glomerular blood vessel + Endothelium of Bowman's capsule + Parietal layer of Bowman's. B) Tunica media + Cuboidal epithelium + Basement's membrane. C) Cuboidal epithelium + Epithelium of Bowman's capsule + Basement membrane between the 2 layers. D) Endothelium + Epithelium of Bowman's capsule + Basement membrane between the 2 layers. Show Answer Correct Answer: D) Endothelium + Epithelium of Bowman's capsule + Basement membrane between the 2 layers. 4. Brush border is characteristic of A) Neck of nephron. B) Collecting tube. C) Proximal convoluted tubule. D) All of these. Show Answer Correct Answer: C) Proximal convoluted tubule. 5. During concentration of urine by the human kidneys, NaCl is returned to the medullary interstitium by the: A) Ascending limb of the vasa recta. B) (a) Descending limb of the loop of Henle. C) (b) Ascending limb of the loop of Henle. D) Descending limb of the vasa recta. Show Answer Correct Answer: A) Ascending limb of the vasa recta. 6. What is the primary waste product excreted by the skin? A) Sodium. B) Urea. C) Ammonia. D) Water. Show Answer Correct Answer: B) Urea. 7. During urine formation, the tubular cells secrete substance ..... into the filtrate A) H, K, NH. B) H 2O, Na, HCO-3. C) H, K & HCO3. D) Na, HCO3. Show Answer Correct Answer: A) H, K, NH. 8. What is the significance of the renal columns in the kidney? A) Increase surface area. B) Support kidney structure. C) Facilitate filtration. D) Separate medullary pyramids. Show Answer Correct Answer: D) Separate medullary pyramids. 9. What is the process of urine formation that involves the movement of substances from the blood into the filtrate? A) Secretion. B) Reabsorption. C) Filtration. D) Excretion. Show Answer Correct Answer: A) Secretion. 10. Match the Column I with Column IIColumn I ..... Column IIA. Nephridia ..... I. Crustaceans ..... (Prawn)B. Malpighian tubules ..... II. Annelids ..... (Earthworm)C. Antennal gland or ..... III. InsectsGreen glands ..... (Cockroach) A) A-III, B-II, C-I. B) A-II, B-III, C-I. C) A-I, B-II, C-III. D) A-II, B-I, C-III. Show Answer Correct Answer: B) A-II, B-III, C-I. 11. Which nitrogenous waste is excreted by reptiles and birds? A) Nitrogen. B) Uric Acid. C) Urea. D) Ammonia. Show Answer Correct Answer: B) Uric Acid. 12. Which of the following group of animals is ureotelic? A) Many terrestrial amphibians. B) Mammals. C) Marine fishes. D) All. Show Answer Correct Answer: D) All. 13. Excretion involves which of the following? A) The large intestine eliminates solid wastes that remain after the digestion of food. B) The lungs break down excess amino acids and toxins in the blood. C) The liver eliminates excess water and salts in sweat. D) The skin exhales water vapor and carbon dioxide. Show Answer Correct Answer: A) The large intestine eliminates solid wastes that remain after the digestion of food. 14. What is the primary function of the kidneys in the excretory system? A) Filtration of blood. B) Respiration. C) Hormone production. D) Digestion. Show Answer Correct Answer: A) Filtration of blood. 15. Glomerulus is confined to ..... of kidney. A) Medulla. B) Cortex. C) Pelvis. D) Pyramid. Show Answer Correct Answer: B) Cortex. 16. Dialysing unit (artificial kidney) contains a fluid that has almost the same as plasma except that it has A) High glucose. B) No urea. C) High urea. D) High uric acid. Show Answer Correct Answer: B) No urea. 17. Green glands are the excretory organs in A) Amphioxus. B) Prawn. C) Spider. D) Cockroach. Show Answer Correct Answer: B) Prawn. 18. The part of nephron involved in active reabsorption of sodium is A) Descending limb of Henle's loop. B) PCT. C) Bowman's Capsule. D) DCT. Show Answer Correct Answer: B) PCT. 19. Assertion:Protonephridia or flame cells are the excretory structures in Flatworms, rotifers, some annelids and Amphioxus. Reason:Protonephridia are primarily concerned with osmoregulation. 1. Both assertion and reason are true 2. Only assertion is true 3. Assertion is correct but reason is false 4. Both assertion and reason are false A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: A) 1. 20. The kidneys help to regulate acid-base balance by controlling the level of ..... in the blood- A) CO$_{2}$. B) H$^{+ }$. C) HCO$_{3}$$^{-}$. D) B and c. Show Answer Correct Answer: D) B and c. 21. All of the following are normally found in urine except A) Sodium ions. B) Urea. C) Uric acid. D) Glucose. Show Answer Correct Answer: D) Glucose. 22. Describe urine in relationship to glomerular filtration, tubular reabsorption and tubular secretion. A) GF + TR + TS. B) GF + TR-TS. C) GF-TR-TS. D) GF-TR + TS. Show Answer Correct Answer: D) GF-TR + TS. 23. What will happen if one kidney is removed from the body of a human being? A) Death due to poisoning. B) Uremia and death. C) Stoppage of urination. D) The person will survive. Show Answer Correct Answer: D) The person will survive. 24. ..... are the tubular excretory structures of earthworms and other annelids. A) Protonephridia. B) Nephridia. C) Malpighian tubules. D) Green glands. Show Answer Correct Answer: B) Nephridia. 25. Which of the following factor is responsible for the formation of concentrated urine? A) Low levels of anti diuretic hormone. B) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys. C) Hydrostatic pressure during glamerular filtration. D) Secretion of erythropoietin by juxta glomerular complex. Show Answer Correct Answer: B) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys. 26. NH$_{3}$ is converted into urea in- A) Spleen. B) Kidney. C) Intestine. D) Liver. Show Answer Correct Answer: D) Liver. 27. Uricotelism is found in A) Mammals and birds. B) Birds, land reptiles and insects. C) Fish and fresh water protozoans. D) Frogs and toads. Show Answer Correct Answer: B) Birds, land reptiles and insects. 28. During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which is demonstrated in this situation? A) Synthesis. B) Excretion. C) Metabolism. D) Homeostasis. Show Answer Correct Answer: D) Homeostasis. 29. A decrease in blood pressure/volume will not cause the release of:- A) Aldosterone. B) Atrial Natriuretic Factor. C) ADH. D) Renin. Show Answer Correct Answer: B) Atrial Natriuretic Factor. 30. Which of the following statements about the kidneys is incorrect? A) 120-125 ml of plasma is forced into the renal tubules each time. B) Approximately 1200 ml of fluid is filtrated by the kidneys each day. C) They consumes over 20% of the oxygen used by the body at rest. D) They compose less than 1% of the body weight. Show Answer Correct Answer: B) Approximately 1200 ml of fluid is filtrated by the kidneys each day. 31. Cortex part which extends in between the medullary pyramids as renal columns called ..... A) Columns of Belini. B) Columns of Bertini. C) Columns of renal. D) Columns of Henle. Show Answer Correct Answer: B) Columns of Bertini. 32. Proximal and distal convoluted tubules are parts of A) Vas deferens. B) Seminiferous tubules. C) Nephron. D) Oviduct. Show Answer Correct Answer: C) Nephron. 33. Which of the following statements is false?I. Outer cortex and inner medulla are the two zones in kidneyII. Medulla is divided into about 8 to 18 renal pyramidsIII. Pyramid projects into calyx IV. Inwards extension of cortex between the pyramids is called renal column of Bertini. A) I and IV. B) II and IV. C) IV. D) None. Show Answer Correct Answer: D) None. 34. Human urine is usually acidic because A) Potassium and sodium exchange generates acidity. B) Hydrogen ions are actively secreted into the filtrate. C) The sodium transporter exchanges one hydrogen ions for each sodium ion, in peritubular capillaries. D) Excreted plasma proteins are acidic. Show Answer Correct Answer: B) Hydrogen ions are actively secreted into the filtrate. 35. In most of the invertebrates excretory structures are A) Simple tubular forms. B) Complex tubular organs. C) Both of above. D) None of the above. Show Answer Correct Answer: A) Simple tubular forms. 36. A large quantity of one of the following is removed from our body to lungs? A) CO2 only. B) H2O only. C) CO2 and H2O. D) Urea. Show Answer Correct Answer: C) CO2 and H2O. 37. What is the opening where urine is released from the body? A) Ureters. B) Kidneys. C) Bladder. D) Urethra. Show Answer Correct Answer: D) Urethra. 38. Which of the following factors is responsible for theformation of concentrated urine? A) Maintaining hyperosmolarity towards themedullary interstitium in the kidneys. B) Hydrostatic pressure during glomerularfiltration. C) Low levels of antidiuretic hormone. D) Secretion of erythropoietin by Juxtaglomerular complex. Show Answer Correct Answer: A) Maintaining hyperosmolarity towards themedullary interstitium in the kidneys. 39. Which part of the nephron is impermeable to water? A) Proximal Convoluted Tubule. B) Distal Convoluted Tubule. C) Collecting Duct. D) Ascending Limb of Henle's Loop. Show Answer Correct Answer: D) Ascending Limb of Henle's Loop. 40. What is the typical osmolarity of human blood? A) 30 mosm/L. B) 100 mosm/L. C) 200 mosm/L. D) 300 mosm/L. Show Answer Correct Answer: D) 300 mosm/L. 41. Statement 1:Malpighian tubules found in insects help in the removal of nitrogenous wastes and osmoregulation. Statement 2:Antennal glands or green glands perform the excretion and osmoregulation in crustaceans like prawns.1. Statement 1 is correct but statement 2 is incorrect2. Statement 1 is incorrect but statement 2 is correct3. Both statements are correct4. Both statements are incorrect A) 3. B) 2. C) 4. D) 1. Show Answer Correct Answer: D) 1. 42. Statement 1:Outside the hilum is a broad funnel shaped space called the renal pelvis with projections called calyces.Statement 2:Renal tubule begins with Bowman's capsule1. Statement 1 is correct but statement 2 is incorrect2. Statement 1 is incorrect but statement 2 is correct3. Both statements are correct4. Both statements are incorrect A) 4. B) 3. C) 1. D) 2. Show Answer Correct Answer: D) 2. 43. The amount of the filtrate formed by the kidney / minute is called GFR (Glomerular Filtration Rate). The GFR of a healthy adult is- A) 80 ml / m. B) 300 ml / m. C) 20 ml / m. D) 125 ml / m. Show Answer Correct Answer: D) 125 ml / m. 44. The most concentrated urine is excreted by A) Humans. B) Frogs. C) Kangaroo rats. D) Desert tortoises. Show Answer Correct Answer: C) Kangaroo rats. 45. The principal nitrogenous excretory compound is synthesised in A) Kidneys but eliminated through liver. B) Kidneys as well as eliminated by kidneys. C) Liver and also eliminated by same through bile. D) Liver but eliminated mostly through kidneys. Show Answer Correct Answer: D) Liver but eliminated mostly through kidneys. 46. Each kidney has how many nephrons? A) About 5000. B) About 2 millions. C) About 1 million. D) About 50000. Show Answer Correct Answer: C) About 1 million. 47. Kidneys are situated between the levels of A) First thoracic and third lumber. B) Last thoracic and third lumbar. C) Last thoracic and first lumbar. D) Last cervical and third Thoracic vertebrae. Show Answer Correct Answer: B) Last thoracic and third lumbar. 48. What is the average glomerular filtration rate (GFR) in a healthy individual? A) 125 ml/min. B) 1.5 liters/day. C) 1100 ml/min. D) 180 ml/min. Show Answer Correct Answer: A) 125 ml/min. 49. An increase in blood flow the atria of the heart can cause the release of? A) Renin. B) Angiotensin-I. C) Angiotensin-II. D) Atrial Natriuretic factor. Show Answer Correct Answer: D) Atrial Natriuretic factor. 50. Inner to the hilum of kidney is a broad funnel shaped space called: A) Cortex. B) Calyx. C) Medulla. D) Pelvis. Show Answer Correct Answer: D) Pelvis. 51. Which segment is resposible for maximumwater and ion reabsorption? A) PCT. B) Henley's loop. C) DCT. D) Collecting duct. Show Answer Correct Answer: A) PCT. 52. The less amount of water is lost with the excretion of which nitrogenous product? A) NH$_{3}$ and urea. B) NH$_{3 }$and uric acid. C) NH$_{3}$. D) Urea and uric acid. Show Answer Correct Answer: D) Urea and uric acid. 53. Which of the following would help in prevention of diuresis? A) More water reabsorption due to under secretion of ADH. B) Reabsorption of sodium (Na+) and water from renal tubules due to aldosterone. C) Adrenal natriuretic factor causes vasoconstriction. D) Decreasing secretion of reinn by JG cells. Show Answer Correct Answer: B) Reabsorption of sodium (Na+) and water from renal tubules due to aldosterone. 54. Which of the following nitrogenous wastes requires hardly any water for its excretion? A) Urea. B) Amino acid. C) Ammonia. D) Uric acid. Show Answer Correct Answer: D) Uric acid. 55. Which of the following correctly explains the function of a specific part of a human nephron? A) DCT-reabsorption of ions into the surrounding blood capillaries. B) Henle's loop-Most reabsorption of the major substances from the glomerular filtrate. C) Afferent arteriole-Carries the blood away from the glomerulus to the renal vein. D) Podocytes-create minute spaces (slit pores) for the filtration of blood into the Bowman's capsule. Show Answer Correct Answer: D) Podocytes-create minute spaces (slit pores) for the filtration of blood into the Bowman's capsule. 56. Statement 1:To maintain a desired osmolarity some amount of urea may be retained in the kidney matrix of some animalsStatement2:Mammals, many terrestrial amphibians and marine fishes are ureotelic animals. 1. Statement 1 is correct but statement 2 is incorrect2. Statement 1 is incorrect but statement 2 is correct3. Both statements are correct4. Both statements are incorrect A) 2. B) 3. C) 4. D) 1. Show Answer Correct Answer: B) 3. 57. Which type of animals primarily excrete urea? A) Ureotelic. B) Uricotelic. C) Ammonotelic. D) Aquatic. Show Answer Correct Answer: A) Ureotelic. 58. What organ in the excretory system helps get rid of body heat and sweat? A) Lungs. B) Kidneys. C) Skin. D) None of the above. Show Answer Correct Answer: C) Skin. 59. The functional kidney of man is A) Metanephric. B) Mesonephric. C) Protonephric. D) None. Show Answer Correct Answer: A) Metanephric. 60. Antidiuretic hormone secretion increases when the hypothalamus is stimulated by- A) Glucose receptors. B) Osmoreceptors. C) Renin receptors. D) Angiotensin receptors. Show Answer Correct Answer: B) Osmoreceptors. Next →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 2Class 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