12th class (Fsc) Biology unit 1 MCQs
51. Which organ is the central station of metabolism?
a. Spleen
b. Liver
c. Skin
d. Kidney
52. The excretory structure that deliver urine from kidney to urine bladder:
a. Ureter
b. Urethra
c. Collecting tubule
d. Pelvis
53. Urine leaves the kidney through a duct called:
a. Ureter
b. Urethra
c. Nephron
d. Pelvis
54. Pressure filtration in kidney specifically occurs at:
a. Vasa recta
b. Bowmans’s capsule
c. Urine collecting
d. Loop of henle
55. Mammalian kidney including human is adapted to conserve water upto:
a. 89.5%
b. 69.5%
c. 99.5%
d. 79.5%
56. The urine leaves the body during urination from bladder through a tube called:
a. Ureter
b. Pelvis
c. Medulla
d. Urethra
57. Blood supplied to kidney from each cardiac heat is:
a. 30%
b. 10%
c. 50%
d. 20%
58. In juxtamedullary nephrons additional capillaries extend down to form a loop of vessels called:
a. Vasa recta
b. Peritubular caplillaries
c. Glomerulus
d. Efferent arterioles
59. All the following tubules of human kidney finally discharge into the:
a. Pelvis
b. Bowmans’s capsule
c. Urethra
d. Glomerulus
60. Which one of the following structures of the kidney is involved in the production of concentrated urine?
a. Cortical nephron
b. Glomerulus
c. Vasa recta
d. Juxtamedullary nephron
61. A pair of kidney consist of millions of functional units called:
a. Dendrons
b. Nephron
c. Flatrons
d. Neurons
62. The reabsorption of water in collecting tubules in under the control of:
a. Tubular secretion
b. Aldosterone
c. Pressure filtration
d. ADH
63. The blood vessel supplying the blood to bowman’s capsule is:
a. Renal artery
b. Afferent tubule
c. Renal vein
d. Efferent arterioles
64. Glomerular filtrate are reabsorbed in:
a. Loop of Henle
b. Proximal tubule
c. Distal tube
d. Bowman’s capsule
65. In each nephron inner and form a cup shaped swelling called:
a. Bowman’s capsule
b. Glomerulus
c. Pelvis
d. Henle’s Loop
66. Urine leaves the kidney through adduct called:
a. Ureter
b. Urethra
c. Nephron
d. Pelvis
67. Pressure filtration in kidney specially occurs at:
a. Vasa recta
b. Bowman’s capsule
c. Urine collecting
d. Loop of henle
68. Mammalian kidney including human is adapted conserve water upto:
a. 89.5%
b. 69.5%
c. 99.5%
d. 79.5%
69. Blood supplied to kidneys from each cardiac beat is:
a. 30%
b. 10%
c. 50%
d. 20%
70. In Juxtamedullary nephron additional capillaries extend down to form a loop of vessels called:
a. Vasa recta
b. Peritubular capillaries
c. Glomerulus
d. Efferent arterioles
71. Nonsurgical removal of kidney stone is called:
a. Uremia
b. Dialysis
c. Kidney transplant
d. Lithotripsy
72. The incidence of calcium oxalate type stones are:
a. 60%
b. 40%
c. 70%
d. 50%
73. The high degree of renal failure is also called:
a. Uremia
b. End stage renal disease
c. Both A & B
d. Uredecty
74. Non surgical removal of kidney stone is called:
a. Uremia
b. Dialysis
c. Kidney transplant
d. Lithotripsy
75. High degree of renal failure is also called as:
a. Anemia
b. Uremia
c. Lithotripsy
d. Leukemia