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प्रश्न
Given below is a simple diagram of the human kidney cut open longitudinally. Answer the following questions:
c
(v) Write two differences in the composition of the blood flowing through blood vessels A and B.
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उत्तर
(i) Excretion is the process of removal of all harmful and unwanted products especially nitrogenous products from the body of living beings.
(ii) The units of the kidney are nephrons.
(iii) The dotted cortex of kidney shows the presence of nephrons (Bowman’s Capsule) in this region.
(iv) Two functions of kidney are:
(a) It expels out all the nitrogenous products produced in the body.
(b) It helps in osmoregulation.
(v) Two differences in the composition of blood flowing through blood vessels A and B are:
(a) A contains blood having a large amount of water and nitrogenous wastes while blood in B is thicker and free from toxic substances.
(b) B carries more O2 and nitrogenous waste products as it is Renal Artery. A carries CO2 and no nitrogenous products.
संबंधित प्रश्न
The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:
(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.
Name the two waste products of the human body which are produced in the body cells.
What is the name of the tubes which connect the kidneys to bladder?
Name the various organs of the human excretory system.
Fill in the blank :
Nitrogenous wastes in the urine are in the form of urea and .....................
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 pelvis and renal papilla
Explain the functioning of kidney.
Complete the following sentence with appropriate word:
______ supplies blood to kidney.
Choose the odd one out in the following set and write the category for the remaining term:
Ammonia, urea, excess sodium chloride, uric acid
