At a blood bank, Mr Thomas gives 350 mL of blood…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
At a blood bank, Mr Thomas gives mL of blood. Plasma makes up of it. How many millilitres are plasma, and how many are cells?
Need a reminder? The key ideaShow
Blood is plasma and cells. The plasma is a pale yellow liquid, about of the blood. It carries food, salts, carbon dioxide and wastes. The cells are the red cells, the white cells and the platelets.
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Plasma. .
Step 2. Cells. .
Answer: mL of plasma and mL of cells.
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