What are the functions of kidney? Why are nephrons called Ultrafiltration units? [Class 10 NCERT].
Answers
Answer:
1) What are the functions of kidney?
The kidneys are powerful chemical factories that perform the following functions:
⇒ remove waste products from the body.
⇒ remove drugs from the body.
⇒ balance the body's fluids.
⇒ release hormones that regulate blood pressure.
⇒ produce an active form of vitamin D that promotes strong, healthy bones.
2) why are nephrons called ultrafiltration units?
The process of glomerular filtration is known as ultrafiltration because blood is filtered very finely through all the membranes such that all the components of the blood plasma are passed on except proteins.
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Answer:
Functions of kidney:
1. Regulating and filtering minerals from blood.
2. Regulating blood pressure and producing RBC's [Red Blood Cells] by creating hormones.
3. Filtering waste materials from food, which can be toxic.
4. Excretion of toxic substances such as urea, ammonia, uric acid etc.
Why are nephrons called Ultrafiltration Units?
Nephrons are called ultrafiltration units because, they filter blood very finely through all membranes.
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