5.2- Excretion as an example of homeostatic control Flashcards
1
Q
What is ultrafiltration?
A
filtration of blood at a molecular level under pressure
2
Q
What is a nephron?
A
the functional unit of the kidney
3
Q
What is the orthenine cycle?
A
a series of biochemical reactions that convert ammonia to urea
4
Q
What is excretion?
A
the removal of metabolic waste from the body
5
Q
What is metabolic waste?
A
a substance that is produced in excess by the metabolic processes in the cells: it may become toxic
6
Q
What are the excretory organs?
A
The lungs, liver, kidneys, skin
7
Q
What products must be excreted ?
A
CO2 from lungs, nitrogenous waste compounds from kidneys + liver, salts-urea-water-uric acid-ammonia- sweat from skin.
