The immune System

Which of the following is the name for a micro-organism that can cause disease?

• Pathogen

• Antibodies

• B-cells

• Lymphocyte

This sticky fluid traps any pathogens that try and get in our body

• Mucous Lining

• Blood

• Stomach Acid

• Skin

What are two examples of chemical barriers?

• Lysozyme enzyme in our tears

• Skin

• White Blood Cells

• Stomach Acid

Which of the following is a type of white blood cell that will help to destroy pathogens which get past our physical barriers and chemical defences?

• bacterium

• antibody

• antigen

• lymphocyte

What is the molecule located on the outside of a pathogen that the immune system recognizes?

• Lymphocyte

• Antigen

• Pathogen

• Inflammation

What attaches to antigens and tags the pathogen for destruction?

• Pathogen

• Antibodies

• B-cells

• Lymphocyte

A(n) ________ is a substance that causes an immune response. It can be on the surface of a pathogen.

• antigen

• antibodies

• B cells

• T cells

The body's ability to destroy pathogens before they can cause disease is called:

• Tolerance

• Immunity

• Vaccine

• Inflammatory response

Foreign cells in the body carry foreign proteins that the body recognises as 'non-self'. These are called:

• Antibodies

• Antigens

• Red Blood Cells

• White Blood Cells

When the body encounters a pathogen, antibodies are created that are specific to that pathogen. The next time the body encounters the pathogen, the response will be:

• Slower

• Faster