Cardio-Respiratory System

What is this sentence describing - The protein found in red blood cells that transports oxygen and carbon dioxide around the body.

• Haemoglobin

• Oxyhaemoglobin

• Alveoli

• Capillaries

What is this sentence describing - A chemical formed when haemoglobin bonds to oxygen.

• Red Blood Cells

• Alveoli

• Capillaries

• Oxyhaemoglobin

What are alveoli?

• White blood cells

• Red blood cells

• Oxygenated blood

• Small air sacs in the lungs where gaseous exchange takes places

What are Capillaries?

• A network of microscopic blood vessels. They are only five cells thick

• A network of microscopic blood vessels. They are only one cell thick

• A network of blood cells

• One cell thick sacs

Which sentence describes diffusion?

• The distance travelled during diffusion. The diffusion pathway is short in gaseous exchange

• Pathway of air

• Pathway of blood

• Pathway of muscular system