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 Multiple Choice QuestionsMultiple Choice Questions

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91.

Identify the correct statement regarding urine formation

  • Counter current mechanism works around the glomerulus and PCT

  • To prevent diuresis, ADH facilitates water reabsorption
    from the latter parts of the tubule

  • Maximum absorption of electrolytes occurs in the Henle's loop

  • A decrease in blood pressure can increase the glomerular filtration rate

  • A decrease in blood pressure can increase the glomerular filtration rate


92.

Choose the wrong statement regarding urine formation

  • Filtration is non-selective process performed by glomerulus

  • The glomerular capillary blood pressure causes filtration of blood through three layers

  • GFR in a healthy individual is approximately 125 ml/min

  • A fall in GFR activates the JG cells to release renin

  • A fall in GFR activates the JG cells to release renin


93.

Vasa recta refers to

  • rectum region of the insects

  • blood capillaries in invertebrates

  • a fine blood capillary network of afferent arteriole

  • a fine capillary which runs parallel to Henle's loop

  • a fine capillary which runs parallel to Henle's loop


94.

Find the wrongly matched pair.

  • Balanoglossus - Proboscis gland

  • Earthworm - Nephridia

  • Grasshopper - Malpighian tubules

  • Prawn - Flame cells

  • Prawn - Flame cells


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95.

The condition in which the kidneys fail to conserve water leading to water loss and dehydration due to impaired ADH synthesis or release is

  • Grave's disease

  • Addison's disease

  • Diabetes insipidus

  • Cretinism

  • Cretinism


96.

In mammals, ammonia produced by metabolism is converted into urea in the

  • Kidney

  • Liver

  • Spleen

  • Blood

  • Blood


97.

Read the following statements and choose the correct option

(i) The glomerular filtration rate in a healthy individual is about 180 ml per day.

(ii) All the constituents of the plasma pass into the lumen of Bowman's capsule.

(iii) 70/80% of electrolytes and water are reabsorbed in the PCT.

(iv) Angiostesin II increases the glomerular blood pressure and GFR.

(v) The counter current systems contribute in concentrating the filtrate.

  • (i) and (ii) only are correct

  • (v) alone is correct

  • (ii), (iii) and (iv) only are correct

  • (iii), (iv) and (v) only are correct

  • (iii), (iv) and (v) only are correct


98.

The parts labeled as (A), (B), (C), (D) and (E) of renal corpuscle represents

  • A - Afferent arteriole; B - Efferent arteriole; C - Glomerulus; D - Bowman's capsule; E - Proximal convoluted tubule

  • A - Efferent arteriole; B - Afferent arteriole; C - Glomerulus; D - Bowman's capsule; E - Proximal convoluted tubule

  • A - Proximal convoluted tubule ; B - Efferent arteriole; C - Glomerulus; D - Bowman's capsule; E - Distal convoluted tubule

  • A - Afferent arteriole; B - Efferent arteriole; C - Bowman's capsule; D - Glomerulus; E - Proximal convoluted tubule

  • A - Afferent arteriole; B - Efferent arteriole; C - Bowman's capsule; D - Glomerulus; E - Proximal convoluted tubule


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99.

Excretory structures in Rotifers are

  • Green glands

  • Malpighian tubules

  • Flame cells

  • Gills

  • Gills


100.

Which of the following factors is responsible for the formation of concentrated urine?

  • maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.

  • Secretion of erythropoietin by Juxtaglomeular complex.

  • Hydrostatic pressure during glomerular filtration

  • low levels of antidiuretic hormone


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