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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.
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संबंधित प्रश्न
Define excretion. Name the excretory unit of a kidney.
With which human organ system (or human systems) is glomerulus associated?
Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.
Urine is devoid of blood cells.
Fill in the blank.
.................. produces bile pigments from the heamoglobin of broken RBCs.
In humans, urea is formed in
Given below is a diagram of a human kidney, cut open longitudinally. Answer the following:
(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney.
Differentiate between:
Renal cortex and Renal medulla.
Complete the following sentence with appropriate words:
The outer surface of the kidney is ______ while the inner surface is ______.
Choose the correct option.
Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?
Give two examples of the following:
Nitrogenous waste
