Question

define excretion. write 2 vital functions of the kidney

Answer 1

Hey there !

Excretion is a process by which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin.

(i) Human kidney performs the process of excretion by removing metabolic wastes from the blood. (ii) It performs the function of osmoregulation by maintaining normal levels of water and mineral ions in the body fluids.

Hope it helps you !

Answer 2

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Define excretion. Write two vital functions of kidney.

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The biological process by which an organism removes harmful metabolic wastes from the body is called excretion. Various functions of kidney are:

1. Removing excess water from the body, i.e. osmo-regulation and homeostasis thus, maintaining overall fluid balance in the body.

2. Removing nitrogenous wastes (urea and uric acid), medicines, toxins and other waste materials from blood in the form of urine