AS Blood

Identify the ions that enter a red blood cell to prevent a charge imbalance created when hydrogen carbonate ions leave red blood cells

• Potassium

• Calcium

• Sodium

• Chloride

When the partial pressure of carbon dioxide is high in which direction is the haemoglobin dissociation curve shifted?

• Right

• Left

• Upwards

• Downwards

What term describes the change in the haemoglobin dissociation curve when the concentration of carbon dioxide is high?

Identify the enzyme that catalyses the formation of carbonic acid in the cytoplasm of red blood cells

How is most of the carbon dioxide in blood transported?

• By carbaminohaemoglobin

• As hydrogen carbonate ions dissolved in the blood

• As carbon dioxide dissolved in blood plasma

• By combining with non polar amino acids

What term describes the shape of a red blood cell

Identify the typical diameter of a red blood cell in micrometres

• 1

• 7

• 17

• 47

Identify the white blood cell

Identify the white blood cells in the image

• Eosinophils

• Lymphocytes

• Erythrocytes

• Macrophages

State the term used as a measure of a gas