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If the afferent arteriole of the nephron constricts, what happens to the GFR in that nephron? If the efferent arteriole constricts what happens to the GFR in that nephron?

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प्रश्न

If the afferent arteriole of the nephron constricts, what happens to the GFR in that nephron? If the efferent arteriole constricts what happens to the GFR in that nephron? Assume that no auto regulation takes place.

एका वाक्यात उत्तर
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उत्तर

If the afferent arteriole of the nephron constricts, GFR is reduced. If the efferent arteriole constricts, GFR is increased.

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पाठ 8: Excretion - Evaluation [पृष्ठ १५१]

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सामाचीर कलवी Zoology [English] Class 11 TN Board
पाठ 8 Excretion
Evaluation | Q 10. | पृष्ठ १५१
सामाचीर कलवी Biology (Zoology) [English] Class 11 TN Board
पाठ 8 Excretion
Evaluation | Q 10. | पृष्ठ १४७

संबंधित प्रश्‍न

Draw neat and labelled diagrams of Malpighian capsule


Put a tick mark (✓) against the most appropriate alternative in the following statement : 

Filtration of excretory wastes from the blood occurs in:


Fill in the blank : 

The unit of human kidney is called ..................... 


Fill in the blank : 

Evaporation of sweat from the skin surface has ............... effect.


Fill in the blank.  

When air is humid, the rate of transpiration is .................. 


Define the following term:

Ultrafiltration


Explain the terms ultrafiltration and selective absorption 


Multiple Choice Question: In the Bowman’s capsule:


Answer the following question.

Effective filtration pressure was calculated to be 20 mmHg; where glomerular hydrostatic pressure was 70 mm of Hg. Which other pressure is affecting the filtration process? How much is it?


Mention any two vital functions of human kidney


In which segment of the nephron most of the re-absorption of substances takes place?


When a molecule or ion is reabsorbed from the lumen of the nephron, where does it go? If a solute is filtered and not reabsorbed from the tubule, where does it go?


Identfiy the biological term

Temporary storage of urine.


During ultra:filtration, ____________ is unable to filter through the glomerular capillaries.


Filtration of the blood takes place at ______. 


Minimum reabsorption occurs in ______.


What are the main processes of urine formation?


The composition of glomerular filtrate and urine is not same. Comment.


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