IGCSE Defence against disease

Identify the component of the blood with a role in blood clotting

• Phagocyte

• Red blood cells

• Plasma

• Platelets

State the term for the foreign particles found on the surface of pathogens

Identify the structures in the image

Identify the cell that produces antibodies

• Red blood cell

• Lymphoctye

• Phagocyte

• Platelet

State the term for the molecule that forms a mesh over a damaged blood vessel into which red blood cells can become trapped

What type of acid is found in the stomach?

• Sulfuric

• Carbonic

• Nitric

• Hydrochloric

Identify the type of blood cell that engulfs pathogens

Hairs that trap pathogens are found in which part of the body?

• Nose

• Ears

• Eyes

• Stomach

What term describes the sticky substance that traps pathogens in the gas exchange system?

State the term for an organism that causes disease