Class XI

Counter current mechanism : i. It operates in all vertebrates. ii. It produces hypertonic urine.
  1. both are correct
  2. Statement i) is wrong and ii) is correct
  3. Statement i) is correct and ii) is wrong.
  4. both are wrong
Urinary bladder helps to :
  1. void urine when desired
  2. stores urine for reabsorbing water from it
  3. detoxify excess urine
  4. concentrate urea in urine
pH of urine under healthy conditions is :
  1. slightly alkaline
  2. highly alkaline
  3. neutral
  4. slightly acidic
The epithelial cells of Bowman’s capsule are called:
  1. Podocytes
  2. Calyces
  3. Slit pores
  4. Filtration slits
The part of a nephron which adds some material to the filtrate is :
  1. Bowman’s capsule
  2. Distal convoluted tubule
  3. Proximal convoluted tubule
  4. Loop of Henle
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