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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.
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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) ______________.
What gaseous waste products are excreted by plants?
State whether the following statement is true or false:
Some organisms store wastes in body parts.
Fill in the following blank with suitable word:
Gums and resins are the .......... products of plants.
Describe in brief how urine is produced in the human body.
Give Technical Term:
The duct which transports urine from the kidney to the urinary bladder.
Write the functional activity of the following structure:
Glomerulus
Write the functional activity of the following structure: Henle’s loop
Choose the correct option.
Which one of the following organisms excrete waste through nephridia?
The number of ATP molecules required to produce one molecule of urea from the omithine cycle.
