Question

State one main function of the following with regard to excretion:

i. Kidneys

ii. Skin

iii. Lungs

iv. Liver

v. Intestine

_____________________________

Please don't give me the answer which has been copied from the Internet. Thank You! :)​

Answer 1

$\large{\mathrm{\red{1.\:Function\:of\:Kidney:}}}$

• It is the main excretory organ in the body. It eliminates watse products (mainly urea) produced in the body through urine.

$\large{\mathrm{\red{2.\:Function\:of\:Skin:}}}$

• It gives of bodily sweat (or perspiration). During perspiration, substance like sodium chloride, lactic acid, urea, amino acid and glucose etc. are excreted in small amounts through skin.

$\large{\mathrm{\red{3.\:Function\:of\:Lungs:}}}$

• It removes carbon dioxide in water vapour from the body during respiration.

$\large{\mathrm{\red{4.\:Function\:of\:Liver:}}}$

• It breaks down toxins and excess amino acids in the blood .

$\large{\mathrm{\red{5.\:Function\:of\: Intestine:}}}$

• The large intestine removes solid waste left after the digestion of food. The solid waste is removed in the form of faeces from the body.