Homeostasis Flashcards
(6 cards)
1
Q
What is homeostasis?
A
Regulation of internal conditions
2
Q
What are 3 things homeostasis controls?
A
- Blood glucose concentration
- Body temperature
- Water levels.
3
Q
How are urea, water and ions removed [from the body]?
A
By the kidneys in urine
4
Q
What hormone controls water level?
A
ADH (negative feedback cycle)
5
Q
Give an example of how temperature is controlled
A
thermoregulatory centre->body temperature too low blood vessels constrict (vasoconstriction) ->sweating stops and skeletal muscles contract, causing shivering->body temperature rises
6
Q
What happens to protein when its digested?
A
When protein is digested amino acid is produced and it is deaminated in the liver to form ammonia. Then it is converted to urea.
