B2 - Blood Flashcards
1
Q
What does (blood) plasma carry?
A
- Waste CO2
- Urea
- Insoluble products from digestion
2
Q
Where is urea formed and where does it exit the body?
A
- Transported from liver to kidneys through the bloodstream
- Kidneys filter urea out of the blood as a part of urine formation
- Urea exits through the uretha via urine
3
Q
Why does urea need to be removed from the body?
A
It’s poisionous
4
Q
What do red blood cells do?
A
Carries oxygen and nutrients to cells
5
Q
Red blood cell adaptations
A
- Bioconcave shape
- Large surface area
- No nucleus (prokaryotic)
6
Q
What do white blood cells do?
A
- Fights harmful organisms (pathogens)
- Produces antibodies
7
Q
What do platelets do?
A
Stops blood loss and bacteria from getting into wounds by creating clots to stop bleeding
8
Q
Structure of a platelet
A
- No nucleus
- Small
