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प्रश्न
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उत्तर
Nephron is the basic structural and functional unit of the kidney.
Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.
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संबंधित प्रश्न
The diagram given below shows the male urinogenital system of a human being. Study the diagram and answer the questions that follow:
(i) Label the parts numbered 1 to 8.
(ii) Name the corresponding structure of part (4) in female reproductive system.
(iii) What is the role of part 7?
Draw the well-labelled diagram of the human excretory system
Name an animal which absorbs oxygen through its moist skin.
What job is done by the kidneys?
Name the following:
The vein in which urea concentration is maximum
Choose the correct answer:
A condition of failure of kidney to form urea is called ____________
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.
Give Technical Term:
The organ in man concerned with maintaining water balance in the body.
If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring? Justify your answer.
