General
✓✗Protonephridia are mainly concerned with
- ionic and fluid volume regulation
- exchange of respiratory gases
- production and release of gametes
- digestion and absorption of food
General
✓✗The collecting duct extends from the
- hilum to the outer cortex
- glomerulus to the PCT
- cortex to the inner medulla
- pelvis to the ureter
General
✓✗Which of the following structures is not a part of the human urinary system?
- Ureter
- Urethra
- Urinary bladder
- Seminal vesicle
General
✓✗If a person's GFR is 125 mL per minute, the volume of filtrate formed in one hour is about
- 0.75 litres
- 7.5 litres
- 12.5 litres
- 1.25 litres
General
✓✗ANF can
- increase aldosterone release
- cause vasodilation and decrease blood pressure
- increase ADH release
- cause vasoconstriction and increase blood pressure
General
✓✗A condition of failure of the kidneys to form urine is called
- anuria
- glycosuria
- uraemia
- deamination
General
✓✗Which of the following pairs of excretory products and routes is incorrect?
- Urea - mostly through urine
- Sterols and waxes - through sebum
- Carbon dioxide - through lungs
- Bilirubin - mostly through urine
General
✓✗The maximum amount of electrolytes and water (70-80 per cent) from the glomerular filtrate is reabsorbed in which part of the nephron?
- Distal convoluted tubule
- Ascending limb of the loop of Henle
- Proximal convoluted tubule
- Descending limb of the loop of Henle
General
✓✗Blood from the glomerulus is carried away by the
- renal vein directly
- afferent arteriole
- efferent arteriole
- vasa recta directly
General
✓✗Match the animals in List I with their excretory structures in List II.
Choose the correct answer from the options given below.
| List I | List II |
| A. Planaria | I. Malpighian tubules |
| B. Earthworm | II. Antennal glands |
| C. Cockroach | III. Nephridia |
| D. Prawn | IV. Flame cells |
- A-III, B-IV, C-I, D-II
- A-IV, B-III, C-I, D-II
- A-IV, B-I, C-III, D-II
- A-IV, B-III, C-II, D-I
General
✓✗Which pair consists of uricotelic animals?
- Camel and frog
- Lizard and crow
- Rohu and frog
- Earthworm and eagle
General
✓✗Which of the following parts of the renal tubule maintains pH and ionic balance by selective secretion of H+ and K+?
- Collecting duct
- Descending limb of Henle's loop
- Bowman's capsule
- Glomerulus
General
✓✗Which of the following statements about ADH are correct?
A. It is also called vasopressin.
B. It is released from the neurohypophysis.
C. Its release is suppressed when body fluid volume increases.
D. It is secreted by the JG cells of the kidney.
Choose the correct answer from the options given below.
A. It is also called vasopressin.
B. It is released from the neurohypophysis.
C. Its release is suppressed when body fluid volume increases.
D. It is secreted by the JG cells of the kidney.
Choose the correct answer from the options given below.
- A, C and D only
- A, B and C only
- B, C and D only
- A and D only
General
✓✗In kidney transplantation, a kidney from a close relative is preferred to
- reduce rejection by the immune system
- avoid the use of any anticoagulant
- reduce the size of the new kidney
- reduce the cost of the whole operation
General
✓✗A severe fall in blood pressure directly reduces the
- secretion of H+ by the tubules
- storage capacity of the urinary bladder
- reabsorption of glucose in the PCT
- glomerular filtration rate