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Define the Glomerular Filtration Rate (GFR).

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प्रश्न

Define the Glomerular Filtration Rate (GFR).

परिभाषा
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उत्तर

Glomerular filtration rate is the amount of glomerular filtrate formed in all the nephrons of both kidneys per minute. In a healthy individual, it is about 125 ml/minute.

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अध्याय 16: Excretory Products and their Elimination - EXERCISES [पृष्ठ २१५]

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एनसीईआरटी Biology [English] Class 11
अध्याय 16 Excretory Products and their Elimination
EXERCISES | Q 1. | पृष्ठ २१५

संबंधित प्रश्न

What is meant by the term osmoregulation?


Fill in the blank. 

........................ is found in the seeds of poppy plants.


Write down the functional activity of the following parts, 

Urethra …………………… 

 


Define the following term:

Ultrafiltration


Explain the terms ultrafiltration and selective absorption 


Give Reasons for the following:
As a result of ultrafiltration along with excretory products certain useful products like glucose, salt, etc. are also filtered but these are not excreted?


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?


What solute is normally present in the body to estimate GFR in humans?


The end product of Ornithine cycle is ______.


Identify the biological term

A liquid which gathers in the bladder.


Identify the biological term

Carry urine from the kidneys to the bladder.


Identify the biological term

What solute the blood contains that are not present in the glomerular filtrate?


With regards to toxicity and the need for dilution in water, how different are ureotelic and uricotelic excretions? Give examples of animals that use these types of excretion?


How is urea formed in the human body?


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


Proximal convoluted tubule differs from distal convoluted tubule being lined by ______ 


Which part of the nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?


Filtration of the blood takes place at ______. 


First step in urine formation is ______.


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