Excretion : Biology MCQ Practice Questions & Answers (Urdu) - Page 5

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81.

Involving mainly in RAAS

A

All of these

B

Angiotensin

C

Aldosteron

D

Renin

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82.

the least toric nitrogen waste of urine is

A

Uric acid

B

Ammonia

C

Allantois

D

Urea

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83.

If liver from body is removed then which component of blood increases

A

Uric acid

B

Ammonia

C

Protein

D

urea

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84.

Juxta glomerular cells of renal cortex synthesize a hormone called:

A

Urochrom

B

ADH

C

Oxytocin

D

Renin

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85.

Glucose is reabsorbed from glomerular filterate though

A

Difusion

B

Active transport

C

Passive transport

D

Osmosis

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86.

A process takes place in PCT is

A

Secretion of urea

B

Absorption of H+ to maintain PH

C

Secretion of buffer $HCO_3$

D

Reabsorption of NACL

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87.

Secretion of renin from JG cell is due to

A

All of these

B

A fall gloerular blood flow

C

glomerular blood pressure

D

GFR

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88.

The net pressure glaient that cause the luid to filler out the glomeruti into thecapsule is

A

30 mm hg

B

50 mm hg

C

75 mm hg

D

20 mm hg

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89.

What is the approximately length and diameter of uriniterous tubule?

A

25 cm length,diameter 20um

B

3 cm length,diameter 35um

C

3 cm length,diameter 20.30um

D

30 cm length,diameter 25um

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90.

The glomerular filteration rate in a normal adult is nearly

A

170 ml/min

B

200 ml/min

C

250 ml/min

D

125 ml/min

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91.

kidney in human being occure in the region of:

A

9th thoracic and forth lumber vertebra

B

10th thoracic and first lumber vertebra

C

12th thoracic and second lumber vertebra

D

11th thoracic and third lumber vertebra

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92.

Each human kidney has nearly

A

10,000 neophrons

B

50,000 neophrons

C

1,00,000 neophrons

D

1 million neophrons

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93.

Urine produced by human kidney is concertratal by ............. times than the initial filtrate formed

A

2

B

300

C

4

D

1200

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94.

How many $NH_3$ required for a urea

A

1

B

2

C

3

D

4

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95.

Kidney are

A

Yellowwish brown

B

Reddish brown

C

Greenish yellow

D

Grey in colour

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96.

Sweat gland secretion consist of

A

Water, salts, $NaCl$ , Lactic acid

B

Water, salts, $NaCl$ , Fatty acid

C

Water, sterols, fatty acid hydrobarbos

D

Water, sterols, latic acid, $NaCl$

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97.

Sebaceous glands discharge

A

Water, salts, $NaCl$ , Lactic acid

B

Water, salts, $NaCl$ , Fatty acid

C

Water, sterols, fatty acid hydrobarbos

D

Water, sterols, latic acid, $NaCl$

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98.

Which hormone influence the activity of kidney?

A

Vasopression

B

Thyoxine

C

Vasopression & aldosterone

D

Gonadotrophin

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99.

The mechnism of urine foundation nephrone involves

A

Utrafication

B

Secretion

C

Reabsorption

D

All of above

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100.

For release of Urine

A

Urinary bTrack contracts

B

Urinary track relaxes

C

Ureter relaxes

D

Ureter contracts

Excretion in Biology : Practice MCQ Questions & Answers with Explanations

Excretion in Biology : Practice MCQ Questions & Answers with Explanations