A person has 14 g of haemoglobin in each 100 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.
A person has g of haemoglobin in each mL of blood. Each gram of free haemoglobin can carry mL of oxygen. After heavy smoking, of the haemoglobin is bound to carbon monoxide.
- How much oxygen can mL of the blood carry if all the haemoglobin is free?
- How much oxygen can mL of the blood carry with of it bound?
- How much oxygen is lost from each mL?
Need a reminder? The key ideaShow
Opioids, cannabinoids and coca alkaloids are the commonly abused drugs. Morphine comes from Papaver somniferum, and heroin is made from it by acetylation. Cocaine comes from Erythroxylum coca. In smoke, nicotine raises the blood pressure and the heart rate, and carbon monoxide binds to haemoglobin. Each gram of free haemoglobin carries about mL of oxygen.
The worked solution
Have you tried it?
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.
Given. Haemoglobin: g in mL. Oxygen: mL for each gram. Bound by carbon monoxide: .
Plan. Find the full capacity, then keep the free share.
Step 1. Full capacity. mL, which is mL to one decimal place.
Step 2. With carbon monoxide. mL, which is mL.
Step 3. The loss. mL, which is mL.
Answer: mL; mL; mL.
Check. of mL is mL.
Watch out. The real loss is greater, because carbon monoxide also makes the bound oxygen harder to give up to the tissues.
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