This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 19 Excretory Products And Their Elimination – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 19 Excretory Products And Their Elimination Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Kidneys donot play significant role in removal of ammonia in A) Fish. B) Man. C) Birds. D) None of the above. Show Answer Correct Answer: A) Fish. 2. The urinary bladder has triangular area called A) Renal pelvis. B) Renal papilla. C) Hilum. D) Trigone. Show Answer Correct Answer: D) Trigone. 3. Statement 1:Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic in nature.Statement 2:Ureotelism and uricotelism help in conservation of water and needed for terrestrial adaptation.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) 4. B) 2. C) 1. D) 3. Show Answer Correct Answer: D) 3. 4. A healthy person eats a very high-protein diet. What will be the effect on the person's urine? A) It will contain more urea. B) It will contain more water. C) It will contain amino acids. D) It will contain glucose. Show Answer Correct Answer: A) It will contain more urea. 5. In mammalian kidney, Henle's loop is present in A) Cortex. B) Ureter. C) Medulla. D) Urinary bladder. Show Answer Correct Answer: C) Medulla. 6. Ammonia is the main nitrogenous excretory material in A) Sharks. B) Tadpoles. C) Birds. D) Lizards. Show Answer Correct Answer: B) Tadpoles. 7. Interstitial fluid of kidney increases in osmolarity from about 300 to 1200 mosml from:- A) Cortex to the inner medulla. B) From medulla to cortex. C) Outer cortex to inner cortex. D) Bowman's capsule to proximal convoluted tubule. Show Answer Correct Answer: A) Cortex to the inner medulla. 8. In the nephron, when blood moves diffuses out of the capillaries, it enters the A) Bowman's capsule. B) Renal tubule of the nephron. C) Renal artery of the nephron. D) Glomerulus of a nephron. Show Answer Correct Answer: A) Bowman's capsule. 9. Which part of the Nephron is mainly meant for the concentration of urine? A) (3) PCT. B) (1) Loop of Henle. C) (2) Bowmen's capsule. D) 4) DCT. Show Answer Correct Answer: B) (1) Loop of Henle. 10. Which of the following statements about the urinary system is INCORRECT? A) It produces renin, which helps regulate blood pressure. B) It carries out the majority of gluconeogenesis in the body. C) It metabolizes vitamin D to its active form. D) It produces erythropoietin, which stimulates red blood cell formation. Show Answer Correct Answer: B) It carries out the majority of gluconeogenesis in the body. 11. Which of the following factors can active the JG cells to release renin? A) A fall in glomerular blood pressure (GBP). B) A fall in glomerular blood flow (GBF). C) A fall in GFR. D) A fall in GFR / GBP / GBF. Show Answer Correct Answer: D) A fall in GFR / GBP / GBF. 12. Assertion:Reptiles, birds, land snails and insects are uricotelic animals.Reason:uricotelic animals excrete uric acid in the form of pellet or paste with a maximum loss of water1. 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) 3. C) 1. D) 4. Show Answer Correct Answer: B) 3. 13. Which of the following play a significant role in mainting high osmolarity in matrix of kidney? A) Ammonia. B) Ammonium ions. C) Water. D) Sodium chloride. Show Answer Correct Answer: A) Ammonia. 14. Use of artificial kidney during hemodialysis may result inA)Nitrogenous waste build up in the bodyB)Non elimination of excess potassium ionsC)Reduced absorption of calcium ions from gastrointestinal tractD)Reduce the RBC productionWhich of the following options is the most appropriate? A) And (D) are correct. B) And (B) are correct. C) And (C) are correct. D) And (D) are correct. Show Answer Correct Answer: A) And (D) are correct. 15. Nitrogenous waste is excreted in the form of pellet are paste by A) Ornithorhynchus. B) Salamandra. C) Hippocampus. D) Pavo. Show Answer Correct Answer: D) Pavo. 16. Nitrogenous waste products are eliminated mainlyas A) Urea in tadpole and ammonia in adult frog. B) Ammonia in tadpole and urea in adult frog. C) Urea in both tadpole and adult frog. D) Urea in tadpole and uric acid in adult frog. Show Answer Correct Answer: B) Ammonia in tadpole and urea in adult frog. 17. A fall in GFR can activate the JG-Cells to release A) H2O. B) Rennin. C) Renin. D) Na+. Show Answer Correct Answer: C) Renin. 18. The DCTs of many nephrons open into a straight tube called- A) Loop of Henle. B) Bowman's capsule. C) PCT. D) Collecting duct. Show Answer Correct Answer: D) Collecting duct. 19. Includes the kidneys, large intestine, liver, skin, and lungs A) Elimination system. B) Excretory system. C) Excretion system. D) Urinary system. Show Answer Correct Answer: B) Excretory system. 20. During the formation of urine, the tubular epithelial cells in different segments of nephron perform either by active or passive mechanisms, which of the given are passively absorbed. A) Nitrogenous wastes. B) Glucose, Na+, H2O. C) Aminoacids, Na+. D) Na+, nitrogenous waste. Show Answer Correct Answer: A) Nitrogenous wastes. 21. Major forms of Nitrogenous waste products excreted by animals are A) Ammonia. B) Urea. C) Uric acid. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. GFR in a healthy individual is approximately is A) 180 lit/min. B) 125 ml/min. C) 125 lit/min. D) 200 lit/min. Show Answer Correct Answer: B) 125 ml/min. 23. What are the pipelines that carry urine from the kidneys to the bladder? A) Urethra. B) Ureters. C) All the above. D) None of the above. Show Answer Correct Answer: B) Ureters. 24. The most toxic nitrogenous waste excreted by animals is A) Urea. B) Uric acid. C) Guanine. D) Ammonia. Show Answer Correct Answer: D) Ammonia. 25. Excretion of nitrogenous products in semisolid forms by- A) Uricotelic animals. B) Amniotes. C) Ureotelic animals. D) Ammonotelic animals. Show Answer Correct Answer: A) Uricotelic animals. 26. By what process does reabsorption of salts, amino acids and glucose occur? A) Active transport. B) Osmosis. C) Diffusion. D) Facilitated diffusion. Show Answer Correct Answer: A) Active transport. 27. Statement I-Small amounts of urea enter the thick segment of the ascending limb of Henle's loop. Statement II-. Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. A) Both the statement are correct. B) Both the statement are incorrect. C) Only Statement I is correct. D) Only Statement II is correct. Show Answer Correct Answer: D) Only Statement II is correct. 28. Assertion:Ammonia produced by metabolism is filtered and excreted out by the kidneys. Reason:Ammonia is converted into urea in the liver of animals.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 incorrect but reason is true4. Both assertion and reason are false A) 4. B) 2. C) 1. D) 3. Show Answer Correct Answer: D) 3. 29. If the pH of the blood decreases, the pH of the urine will A) First increase than decrease. B) Be unaffected. C) Decrease. D) Increase. Show Answer Correct Answer: C) Decrease. 30. NaCl is returned to interstitium by which limb? A) Ascending limb of Vasa recta. B) Descending limb of Vasa recta. C) Ascending limb of Henley's loop. D) Descending limb of Henley's loop. Show Answer Correct Answer: A) Ascending limb of Vasa recta. 31. Which one of the following is produced in the kidneys? A) Renin. B) Rennin. C) Arginase. D) Uricase. Show Answer Correct Answer: A) Renin. 32. Kidney stones are crystals of A) Calcium oxalate. B) Sodium chloride. C) Potassium chloride. D) Silica. Show Answer Correct Answer: A) Calcium oxalate. 33. Where majority of the reabsorption takes place? A) Ascending limbs of the loop of Henle. B) Proximal convoluted tubule. C) Collecting duct. D) Renal capsule. Show Answer Correct Answer: B) Proximal convoluted tubule. 34. Statement I-Large amounts of water could be reabsorbed from Collecting tubule.Statement II-The two limbs of Henley's loop have similar permeabilities. A) Both the statement are correct. B) Both the statement are incorrect. C) Only Statement I is correct. D) Only Statement II is correct. Show Answer Correct Answer: C) Only Statement I is correct. 35. Excretion of dilute urine requires A) 1. relative permeability of the distal tubule to water. B) 2. transport of sodium and chloride ions out of the descending loop of Henle. C) 3. the presence of ADH. D) 4.Impermeability of collecting tubule. Show Answer Correct Answer: D) 4.Impermeability of collecting tubule. 36. Following are the parts of a typical nephron (a) Malpighian corpuscle (b) Loop of Henle (c) PCT (d) DCT (e) Collecting duct How many of these are located in the cortex of kidney A) A, e, b. B) B, c, d. C) A, c, d. D) A, b, c. Show Answer Correct Answer: C) A, c, d. 37. Which part of the nephron is responsible for the majority of reabsorption? A) Proximal Convoluted Tubule. B) Distal Convoluted Tubule. C) Henle's Loop. D) Collecting Duct. Show Answer Correct Answer: A) Proximal Convoluted Tubule. 38. Which of the following is correct about juxta medullary nephrons? A) Vasa recta is prominent. B) Vasa recta is prominent. C) NaCl is returned to the interstitium by ascending limb of vasa recta. D) All. Show Answer Correct Answer: D) All. 39. If Loop of Henle were absent from mammalian nephrons, which of the following is to be expected? A) The urine will be more dilute. B) There will be no urine formation. C) The urine will be more concentrated. D) There will be hardly any change in quality and quantity of urine formed. Show Answer Correct Answer: A) The urine will be more dilute. 40. What is the main function of the collecting duct in the nephron? A) Production of urine. B) Secretion of ions. C) Filtration. D) Reabsorption of water. Show Answer Correct Answer: D) Reabsorption of water. 41. What is the role of the renal pelvis? A) Filtration. B) Storage of urine. C) Transport of urine. D) Production of urine. Show Answer Correct Answer: C) Transport of urine. 42. What do the nephrons do in the kidneys? A) They make water in the kidneys. B) Cells that pump blood to the body. C) Special cells that filter the blood. D) They are not in the kidneys. Show Answer Correct Answer: C) Special cells that filter the blood. 43. Ascending loop of Henle is permeable to A) Na+. B) K+. C) Cl-. D) All. Show Answer Correct Answer: D) All. 44. What is the role of the juxta glomerular apparatus (JGA)? A) Regulate blood pressure. B) Control urine concentration. C) Secrete hormones. D) Filter blood. Show Answer Correct Answer: A) Regulate blood pressure. 45. What is the most toxic form of nitrogenous waste? A) Carbon Dioxide. B) Urea. C) Ammonia. D) Uric Acid. Show Answer Correct Answer: C) Ammonia. 46. A medical procedure in which blood is filtered through a machine A) Renal filtration. B) Renal purification. C) Dialysis. D) Dionysus. Show Answer Correct Answer: C) Dialysis. 47. Uricotelic mode of passing out nitrigenous wastes is found in A) Birds and Annelids. B) Amphibians and Reptiles. C) Insects and Amphibians. D) Reptiles and Birds. Show Answer Correct Answer: D) Reptiles and Birds. 48. What is the function of Bowman's capsule and glomerulus? A) Filtration of blood. B) Reabsorption of water from blood. C) Reabsorption of ions from blood. D) Reabsorption of hormones from blood. Show Answer Correct Answer: A) Filtration of blood. 49. Which one of the following, if present in a urine sample, would likely be caused by trauma? A) Glucose. B) Amino acids. C) Salts. D) Erythrocytes. Show Answer Correct Answer: D) Erythrocytes. 50. ..... ml of blood is filtered by the kidneys per minute A) 1200. B) 900. C) 2000. D) 180. Show Answer Correct Answer: A) 1200. 51. What is the function of the efferent arteriole in the nephron? A) Carries blood away from the glomerulus. B) Reabsorbs nutrients. C) Filters blood. D) Carries blood to the glomerulus. Show Answer Correct Answer: A) Carries blood away from the glomerulus. 52. The role of the kidneys in homeostasis includes which of the following? A) The kidneys control the amount of water, ions, and other substances in the blood. B) The kidneys secrete hormones that regulate other body processes. C) The kidneys filter all the blood in the body many times each day. D) All of these. Show Answer Correct Answer: D) All of these. 53. Peristaltic muscular contractions are important for conveying urine through the excretory system, much like peristalsis in the digestive tract. Peristalsis of the detrusor muscle of the urinary bladder is controlled by: A) Impulses from the cerebral cortex. B) Parasympathetic nervous impulses. C) Conscious control of the skeletal muscle. D) Sympathetic nervous impulses. Show Answer Correct Answer: B) Parasympathetic nervous impulses. 54. Which of the following is correct about protonephridia / flame cells? A) Protonephridia are the excretory structures in platyhelminthes (e.g Planaria), rotifers and some annelids. B) Protonephridia are the excretory structures in the cephalochordates e.g. Amphioxus. C) Protonephridia are primarily concerned with ionic and fluid volume regulation i.e. osmoregulation. D) All. Show Answer Correct Answer: D) All. 55. The average amount of urea excreted out by person per day is A) 10-20gm. B) 30-40 gm. C) 40-50 gm. D) 25-30gm. Show Answer Correct Answer: D) 25-30gm. 56. In which of the following counter current operates- A) In ascending limb of loop of Henle. B) In descending limb of loop of Henle. C) In ascending limb or descending limb of vasa recta. D) Between the 2 limb of Henle's loop and those of vasa recta. Show Answer Correct Answer: D) Between the 2 limb of Henle's loop and those of vasa recta. 57. Which group possess excretory organs known as Malpighian tubules? A) Insects. B) Jellyfish. C) Flatworms. D) Earthworms. Show Answer Correct Answer: A) Insects. 58. Juxtaglomerular apparatus, a special sensitive cellular region is formed in A) PCT and DCT. B) PCT and DCT at the location of their contact. C) PCT and loop of Henle at the location their contact. D) DCT and afferent arteriole at the location of their contact. Show Answer Correct Answer: D) DCT and afferent arteriole at the location of their contact. 59. Reabsorption of Na+ is controlled by- A) Renin. B) Vasopressin or ADH. C) Rennin. D) Aldosterone. Show Answer Correct Answer: D) Aldosterone. 60. Kidney "stones" A) Are infections of the urinary tract, especially the bladder. B) Are mineral crystals that form in urine inside the kidney. C) Can result in damage to the capillaries of nephrons. D) Are used when blood is filtered through a machine. Show Answer Correct Answer: B) Are mineral crystals that form in urine inside the kidney. ← 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 2Class 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