Excretion Flashcards
1
Q
What is excretion?
A
-refers to the removal of toxic substances, waste products from metabolism or excess of substances. These substances are excreted by different excretory organs
2
Q
What is excreted through the skin?
A
-sweat, containing excess salts and urea
3
Q
What is excreted through the stomata?
A
-oxygen and excess carbon dioxide
4
Q
What is excreted through the kidneys?
A
-urea, along with excess water and salts
5
Q
What is excreted through the lungs?
A
-carbon dioxide
6
Q
What is the role of the kidney?
A
- control the water and ion levels in the blood. The main function of the kidney is to remove unwanted substances, such as urea, along with excess water from the body
- they do this by filtering the blood and producing urine
