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Kidneys are vital organs for survival. Several factors like infections, injury or restricted blood flow to kidneys reduce the activity of kidneys. This leads to accumulation of poisonous wastes in the body, which can even lead to death. In case of kidney failure, an artificial kidney can be used. An artificial kidney is a device to remove waste products from the blood through dialysis.
Describe the structure and functioning of nephrons.
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
Name the part of the human excretory system where nephrons are found. Write the structure and function of nephrons.
Given below is a diagram of a nephron. Which row of the following table correctly shows where filtration and selective reabsorption occur?
(a) Ketaki thinks that the fresh dialysing fluid that enters the dialysis machine is rich in urea. Is she correct? Why or why not? (b) Urination is a ___________(voluntary/involuntary/both voluntary and involuntary) process.
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