Excretion Quiz Question with Answer

31. the two kidneys lie:

  1. At the level of ovaries
  2. At the same level
  3. Left kidney at a higher level than the ight one
  4. Right kidney at a higher level than the left one

32. A kidney stone is

  1. Blockage by fats
  2. Desposition of sand in kidney
  3. A salt such as Oxalate crystallised in pelvis
  4. Blockage by proteins

33. The yellow colour of urine of the vertebrates in due to

  1. Cholesterol
  2. Urochrome
  3. Uric acid
  4. Malamin

34. Lungs expel

  1. CO2
  2. H2O
  3. CO2 and water
  4. CO2 and water vapours

35. In ornithin cycle which of the following waste are removed from the blood?

  1. CO2 and urea
  2. Ammonia and urea
  3. CO2 and ammonia
  4. Urea and urine

36. Main function of uriniferous tubules

  1. Concentration of urine
  2. Passage of urine
  3. Reabsorption of useful substances from glomerular filtrate
  4. Removal of urea and other waste from blood

37. Loop of henle and collecting ducts are locketed in kidney is

  1. Cortex
  2. Medulla pyramid
  3. Columns of bertini
  4. Calyces

38. Peritubuler is in

  1. Cortex
  2. Deep in medulla
  3. Calyces
  4. Surround to duct of bellini

39. The function of renin is

  1. Degradation of angiotensinogen
  2. Stimulation of corpus luteum
  3. To reduce blood pressure
  4. Vasodilation

40. Which one of the following statement is impereble to water

  1. Descending limb of loop of henle is impereable to water
  2. DCT is incapable of reabsorbing HCO3
  3. Nearly 99% of the glomerular filterate is reasorbed by the renal tubules
  4. Ascending limb of loop of henle is impereable to water

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