Oxygen

What is the percentage of oxygen in the atmosphere?

• 10

• 78

• 21

• 100

Oxygen is the most abundant element by mass in the Earth's biosphere

• True

• False

How much oxygen does the human lung consume per minute?

• 5-6 ml

• 500-600ml

• 50-60ml

In 100ml of blood how much dissolved oxygen is there?

• 3lt

• 300ml

• 0.3ml

• 30ml

Increased plasma carbon dioxide levels

• causes a increase in pH

• decreases affinity between Hb and O2

• increase affinity between Hb and O2

• Causes a left shift (Bohr Effect)