B3 2.2 Blood Flashcards
1
Q
Is blood a tissue?
A
Yes.
2
Q
What does a fluid called plasma consist of?
A
Red blood cells, white blood cells and platelets/.
3
Q
What does blood plasma transport?
A
- Soluble products of digestion, small intestine, other organs
- CO2, organs, lungs
- Urea, liver, kidneys
4
Q
Role of red blood cells?
A
Carrying oxygen from the lungs to the other organs.
5
Q
Features of red blood cells
A
- Biconcave discs
- No nucleus
- Packed with a red pigment called haemoglobin.
6
Q
How does a red bloos cell carry oxygen from the lungs to the other organs?
A
In the lungs, haemoglobin combines with oxygen to create oxyhaemoglobin in the lung.
In the other organs, oxyhaemoglobin splits up into oxygen and haemoglobin.
7
Q
One feature of white blood cells + their role.
A
- Contains one nucleus.
- Form parts of the body’s defence system against micriorganism.
8
Q
Characteristics of platelets.
A
- Platelets are small fragments of cells.
- No nucleus.
- Help blood to clot at the site of a wound.
