Revision 20% Immune Response

Which sentence is correct about infectious diseases?

• Infectious diseases are caused only by bacteria.

• Infectious diseases are caused only by viruses.

• Infectious diseases are caused by microorganisms called pathogens.

• Infectious diseases are not contagious.

• Infection diseases are caused by only lymphocytes and phagocytes.

Which sentence is correct about virus and bacteria?

• Viruses can cause diseases while bacterias can not.

• Viruses and bacterias can be treated with antibiotics.

• Bacterias are living organisms while viruses are not.

• Bacterias are always pathogens.

• Neither viruses nor bacterias can be treated with antibiotics.

What does it mean to be immune against a disease?

• That you can not contract any disease.

• That you have created antibodies against an specific disease.

• That you are protected against diseases caused by virus.

• That you are protected against diseases caused by bacterias.

• That you are protected against diseased caused by fungi.

Why do we need to get vaccinated against the Flu every year?

• Because the Flu is caused by a virus that can live a year in our bodies.

• Because the Flu only can be contracted once a year.

• Because the antibodies form in our body only last one year.

• Because every year the flu is different.

• Neither of the other options is correct.

In relation to the image below, it is correct to say that it is .......

• A part of the second line of defense.

• A part of the specific immune response.

• A lymphatic organ.

• A physical barrier.

• Not a physical nor a biochemical barrier.

In relation to 'phagocytes' it is correct to say ......

• That they are a type of white blood cell that use phagocytosis to engulf pathogens

• That they are a type of white blood cell that can produce antibodies.

• That they are a type of white blood cells that destroy infected cells.

• That they are a part of the specific immune response.

• That they are they only white blood cell which helps the body to fight against diseases.

Specific to 'Lymphocytes B' it is correct to say that ......

• They are a part of the non specific immune response.

• They are a type of white blood cell that destroy infected cells.

• They are a type of white blood cell that can engulf pathogens.

• They are a type of white blood cell that can produce antibodies.

• That they are a type of red blood cell that helps fight against diseases.

Which of following is NOT considered a lymphatic organ?

• Spleen.

• Lymph nodes.

• Tears.

• Tonsils.

• Mucous membranes.

Specific to the 'first response barrier' it is correct to say that .....

• It is specific for every disease.

• It is a specialized immunity for particular pathogens.

• They are are series of physical and chemical mechanisms your body uses every day to keep you safe.

• Lymphocytes B and T are involved in the first response barrier.

• Pathogens can never pass through the first response barrier.

Which of the following is part of the body’s first line of defense against the invasion of disease-causing microorganisms?

• Phagocytes.

• Lymphocytes.

• Coughing and Sneezing.

• Inflammation.

• Production of antibodies.