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Excretory System MCQs | Excretory System Multiple Choice Questions with Answers

61 The kidneys are located
[A] Within the coelom
[B] Near the buccal cavity
[C] Near the heart
[D] Outside the coelom
Answer: Outside the coelom
62 The cells which line the neck and the body of the nephron are
[A] Smooth squamous epithelial
[B] Tessellated epithelial
[C] Stratified epithelial
[D] Cuboidal and ciliated epithelial
Answer: Cuboidal and ciliated epithelial

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63 In Annelids excretory organs are
[A] Nephridia
[B] Malpighian tubules
[C] Green glands
[D] Kidneys
Answer: Nephridia
64 Malpighian body is constituted by
[A] Glomerulus only
[B] Glomerulus and Bowman’s capsule
[C] Glomerulus and efferent vessel
[D] Glomerulus, Bowman’s capsule and efferent vessel
Answer: Glomerulus and Bowman’s capsule
65 The kidneys not only remove the waste products from the blood but also play a very important role in maintaining
[A] Equilibrium of the body
[B] Temperature of the body
[C] Constant composition of the blood irrespective of the nature of the food or fluid intake
[D] Blood pressure constant
Answer: Constant composition of the blood irrespective of the nature of the food or fluid intake
66 The pH of fresh urine is about
[A] 1
[B] 0
[C] 4
[D] 9
Answer: 0
67 Haematuria is the disorder involving
[A] The loss of blood through the urine
[B] Loss of haemoglobin in R.B.C.
[C] Loss of glucose in urine
[D] The increase in concentration blood urea
Answer: The loss of blood through the urine
68 The reabsorption of glucose from the glomerular filtrate is due to
[A] High osmotic pressure of filtrate
[B] Passive diffusion
[C] Active transport across the walls of proximal convoluted part
[D] Filtration pressure exerted on the fluids in the loop of Henle
Answer: Active transport across the walls of proximal convoluted part
69 Excretion in the form of uric acid and urates in birds is helpful in
[A] Conserving body heat
[B] Conserving water
[C] Elimination of water
[D] Conserving urea
Answer: Conserving water
70 Physiologically urea is produced by the action of an enzyme
[A] Uricase
[B] Urease
[C] Arginase
[D] None
Answer: Arginase
71 Malpighian tubules are the excretory organs in
[A] Cockroach
[B] Platyhelminthes
[C] Ascaris
[D] Pila
Answer: Cockroach
72 A notch present on the mesial side of kidney is known as
[A] Ureter
[B] Pelvis
[C] Hilus
[D] Pyramid
Answer: Hilus
73 The narrow apex of pyramid is called
[A] Column of Bertin
[B] Calyx
[C] Papillary duct of Bellini
[D] Pelvis
Answer: Papillary duct of Bellini
74 The amount of urine output per day by a normal human being is
[A] 4-5 liters
[B] 3-4 liters
[C] 1-1.8 liters
[D] 5-0.75 liters
Answer: 1-1.8 liters
75 Rate of glomerular filtration per minute in an adult human being is
[A] 125 ml
[B] 25 ml
[C] 225 ml
[D] 425 ml
Answer: 425 ml
76 Tubular secretion adds to the glomerular filtrate
[A] Urea
[B] Uric acid
[C] ammonia
[D] All the above
Answer: All the above
77 The process that pushes out water and other dissolved materials from blood in the glomerulus is
[A] Dialysis
[B] Secretion
[C] Filtration
[D] Ultrafiltration
Answer: Ultrafiltration
78 In kidneys, urine is produced by three processes
[A] Dialysis, ultra filtration and tubular secretion
[B] Ultra filtration, dialysis and tubular secretion
[C] Ultra filtration, tubular reabsorption and tubular secretion
[D] Tubular reabsorption and tubular secretion
Answer: Ultra filtration, tubular reabsorption and tubular secretion
79 Collecting tubes are lined by
[A] Squamous epithelium
[B] Columnar epithelium
[C] Cuboidal epithelium
[D] Cuboidal and columnar epithelium
Answer: Cuboidal and columnar epithelium
80 Bowman’s capsule is lined by
[A] Ciliated cuboidal epithelium
[B] Squamous epithelium
[C] Non ciliated cuboidal epithedal
[D] Non ciliated columnar epithelium
Answer: Squamous epithelium

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