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प्रश्न
Explain the principle of dialysis with the help of a labelled diagram.
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उत्तर
Principal of dialysis:
The procedure of dialysis is based on diffusion of solutes and ultrafiltration of fluid across a semi-permeable membrane. In dialysis, the blood from a convenient artery is pumped into the dialyser of a dialysing machine. A dialyser contains a coiled cellophane tube surrounded by the dialysing solution. The dialysing solution contains water, glucose and salts, which are similar in concentration to those in normal blood. The porous cellophane membrane of the tube allows the passage of molecules based on concentration gradient. As the patient’s blood is passed through the dialysing solution, most of the wastes (like urea) present in it pass through the selectively permeable cellulose tubes into the dialysing solution, thereby cleaning the blood. The clean blood is pumped back to the body through a vein.
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संबंधित प्रश्न
_____________ secreted by the (ii) _____________ lobe of the pituitary gland. If this hormone secretion is reduced, there is an increased production of urine. This disorder is called (iii) ____________. Sometimes excess glucose is passed with urine due to hyposecretion of another hormone called (iv) _____________ leading to the cause of a disease called (v) ______________.
the Biological/technical term Pigment providing colour to urine.
The procedure of cleaning the blood of a person by using a kidney machine is known as:
(a) ketolysis
(b) hydrolysis
(c) dialysis
(d) photolysis
Tick the most appropriate answer.
The process of removing waste from the body is called
Differentiate between
excretion and transpiration
Given below is a set of five terms. Rewrite the terms in their correct order so as to be in logical sequence.
Renal artery, urethra, ureter, kidney, urinary bladder.
If you donate one kidney to a needy patient, would it cause any harm to you? Give reason.
Differentiate between the following pairs of term :
Renal cortex and renal medulla
Define the following term :
Renal pelvis
Explain in your own words with suitable examples.
How does excretion occur in human beings?
Choose the correct answer:
Composition of extracellular fluid is regulated by ___________
Describe in brief how urine is produced in the human body.
Name the Following
The Inner concave margin of kidney.
Name the Following
The branch of renal artery which enters into Bowman’s capsule.
Name the Following
The blood vessels which brings pure blood to the kidneys:
State the Location: Renal pyramids
Choose the correct option.
What is micturition?
Choose the correct option.
The minor calyx _______.
Answer the following question.
Amphibian tadpole can afford to be ammonotelic. Justify.
