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EXCRETORY PRODUCTS AND THEIR ELIMINATION

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

NH3 is converted into urea in –

a)

Kidney

b)

Liver

c)

Spleen

d)

Intestine

2.

Excretion of nitrogenous products in semisolid forms by –

a)

Uricotelic animals

b)

Ureotelic animals

c)

Ammonotelic animals

d)

Amniotes

3.

The less amount of water is lost with the excretion of which nitrogenous product?

a)

NH3 and urea

b)

NH3 and uric acid

c)

NH3

d)

Urea and uric acid

4.

Inner to the hilum of kidney is a broad funnel shaped space called :

a)

Cortex

b)

Medulla

c)

Pelvis

d)

Calyx

5.

Which one of the following is a tube that carries urine from kidney to the urinary bladder?

a)

Loop of Henle

b)

Ureter

c)

Urethra

d)

Uvula

6.

Reabsorption of Na+ is controlled by –

a)

Vasopressin or ADH

b)

Aldosterone

c)

Renin

d)

Rennin

7.

What is the typical osmolarity of human blood?

a)

30 mosm/L

b)

100 mosm/L

c)

200 mosm/L

d)

300 mosm/L

8.

The glomerular capillaries cause filtration of blood through __________ layers –

a)

1

b)

2

c)

3

d)

6

9.

On average, ______ ml of blood is filtrated by the kidney per minute which constitute roughly _____ of the blood pumped out by each ventricle of heart in a minute

a)

125 ml, 1/6th

b)

100 - 125 ml, 1/6th

c)

1100 - 1200 ml, 1/5th

d)

5 L, 1/10th

10.

The amount of the filtrate formed by the kidney / minute is called GFR (Glomerular Filtration Rate). The GFR of a healthy adult is –

a)

80 ml / m

b)

125 ml / m

c)

300 ml / m

d)

20 ml / m

11.

The GFR / day in a healthy adult is –

a)

5L

b)

180 L

c)

200 L

d)

20 L

12.

Juxtaglomerular apparatus, a special sensitive cellular region is formed in

a)

PCT and DCT

b)

PCT and DCT at the location of their contact

c)

PCT and loop of Henle at the location their contact

d)

DCT and afferent arteriole at the location of their contact

13.

Of the filtrate, nearly how many of it is reabsorbed by the renal tubules?

a)

5%

b)

99%

c)

50%

d)

25%

14.

PCT helps to maintain the pH and ionic balance of body fluids by –

a)

Selective secretion of H+, NH3 and K+ ions in filtrate

b)

Reabsorption of HCO3– from filtrate

c)

Both a and b

d)

Secreting regulatory hormone like renin and angiotensinogen