Quiz 4. Excretory System

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It includes Urine Formation

Name of student *

1 point

Which process does not involved in urine formation ? *

1 point

Filterate synthesis

Ultrafilteration

Reabsorption

Secretion

The first step in urine formation is the filtration of blood, which is carried out by the glomerulus and is called...
*

1 point

Selective reabsorption

Tubular secretion

Glomerular filteration

Synthesis

Liquids which collects in the cavity of Bowman's capsule is *

1 point

Urine

Plasma minus blood proteins and blood cells

Glycogen and water

Sulphates and water

Filteration pressure in glomerulus is due to .... *

1 point

Secretion of adrenalin

Afferent arteriole is slightly wider than efferent arteriole

Pumping action of heart

Vacuum developed in glomerulus

GFR (Glomerular filtration rate) healthy person is about.... *

1 point

125 ml/ hour

180 liter/ min

125 ml/ min

180 liter/ hour

On an average, ...........of blood is filtered by the kidneys per minute
*

1 point

1 to 2 litres

1100 - 1200 ml

500 - 600 ml

800 -900 ml

A fall in GFR activates .... *

1 point

Juxtaglomerular cells to release renin

Adrenal gland to secret aldosterone

Adrenal medulla to secret adrenalin

Posterior pituitary to release vasopressin

On an average, 1100-1200 ml of blood is filtered by the kidneys per minute which constitute roughly ...?.. of the blood pumped out by each ventricle of the heart in a
minute
*

1 point

1/2 of total blood pumped in minute

1/3 of total blood pumped in minute

1/4 of total blood pumped in minute

1/5 of total blood pumped in minute

The glomerular capillary blood pressure causes filtration of blood through 3 layers. Which layer is not included in these layers...?
*

1 point

The epithelium of Bowman’s capsule

Ciliated epithelium of Basement membrane

Endothelium of glomerular blood vessels,

Basement membrane

How many cellular layers through which blood fitlered out in cavity of Bowman's capsule *

1 point

2 layer

3 layer

4 layer

5 layer

Podocytes are present in the epithelial lining of....
*

1 point

PCT

DCT

Glomerulus

Bowman's capsule

Glomerular filteration passes through three layers in the sequence of ... *

1 point

Endothelium of glomerulus > Podocyte of Bowman's capsule > Basement membrane

Podocyte of Bowman's capsule > Basement membrane > Endothelium of glomerulus

Podocyte of Bowman's capsule > Endothelium of glomerulus > Basement membrane

Endothelium of glomerulus > Basement membrane > Podocyte of Bowman's capsule

Which of the following are not passed on to the lumen of Bowman’s capsule during glomerular filtration?
*

1 point

Fat molecules

Glucose

Water

Proteins

What is the percentage of cortical nephrons concerning the total nephrons present in the kidneys?
*

1 point

75-80%

50%

15-20%

95%

In approximately how many minutes, the whole blood of the body is filtered through the kidneys?
*

1 point

10 minutes

7 minutes

4-5 minutes

2 minutes

What is the full form of JGA?
*

1 point

Juxta glomerulus aperture

Juxta glial aperture

Juxtaglomerular apparatus

Juxta glial apparatus

JGA is a special sensitive region formed by cellular modifications in the ....... and ...... at the location of their contact
*

1 point

PCT and afferent arteriole

DCT and efferent arteriole

DCT and afferent arteriole

PCT and Loop of Henle

A fall in GFR can activate the JG cells to release ........ which can stimulate the glomerular blood flow and thereby the GFR back to normal
*

1 point

Rennin

Vasopressin

Oxytocin

Renin

The kidneys have built-in mechanisms for the regulation of glomerular filtration rate.....
*

1 point

Podocytes in Bowman's capsule

Capillary network in glomerulus

Juxta glomerular appratus

Tubular secretion

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