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प्रश्न
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.
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उत्तर
(i) Separation and elimination of the metabolic nitrogenous wastes from the body is called excretion.
(ii) Nephron.
(iii) The cortex of kidney shows dotted appearance because it contains numerous complex structures called nephrons.
(iv) Formation of urine and osmoregulation are important functions of kidney.
संबंधित प्रश्न
the Biological/technical term Pigment providing colour to urine.
Correct the statement by changing the underlined word.
Normal pale colour of the urine is due to the presence of the pigment Melanin.
With which human organ system (or human systems) is the glomerulus associated?
The excretory unit in the human excretory system is called ______.
Fill in the blank.
.................. produces bile pigments from the heamoglobin of broken RBCs.
Answer the following in detail.
Describe the process of urine formation.
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.
“All plants give out oxygen during the day and carbon dioxide during the night”. Do you agree with this statement? Give a reason.
Which of the following is not an example of secretion?
Name the following;
Three nitrogenous wastes of our body.
