2.8.5 Human Transport Systems: Blood Flashcards
1
Q
What are the four components of blood?
A
red blood cells, white blood cells, platelets and plasma
2
Q
What volume of blood is made up of Plasma?
A
Over half of the volume of the blood is made up of plasma
3
Q
What is the other half of the volume of blood made up of?
A
The majority of the other half is made up of red blood cells
The remaining fraction consists of white blood cells and platelets
4
Q
What is the structure of red blood cells?
A
Biconcave discs containing no nucleus but plenty of the protein haemoglobin
5
Q
What is the structure of white blood cells?
A
Large cells containing a big nucleus, different types have slightly different structures and functions.
6
Q
What is the structure of platelets?
A
Fragments of cells
7
Q
What is the structure of Plasma?
A
Straw coloured liquid
