What is a pathogen?

Name 5 non specific defence mechanisms

What type of Cells are involved in the specific defence mechanism?

What is the role of mucus in defence?

What do phagocytes contain that release lytic enzymes?

What shape are antibodies?

What time of immunity involved T lymphocytes?

Where are T lymphocytes produced?

Where do T lymphocytes mature?

What type of antigens trigger an immune response from T lymphocytes?

What type of immunity involved B lymphocytes?

What do B lymphocytes respond to?

How long after infection does it take for antibodies to be produced?

What are the type of cells that are clones of B & T lymphocytes that remain in the body for long term defence?

Why does antigenic variation stop the previous antibodies responding to a new infection?

How many polypeptide chains are in an antibody?

What holds the peptide chains together?

Name some features of a successful vaccination programme

What type of immunity results from antibodies being transferred?

What are monoclonal antibodies?