4.1.1: Communicable Diseases: Types Of Immunity

Question 1

What is passive immunity?

Answer 1

Antibodies are introduced into the body.

The pathogen doesn’t enter the body, so plasma cells and memory cells are not made. No long-term immunity.

Question 2

What are examples of passive immunity?

Answer 2

Antibodies passed to a foetus through the placenta or through breast milk to a baby.

These are natural ways through which passive immunity is acquired.

Question 3

What is active immunity?

Answer 3

Immunity created by your own immune system following exposure to the pathogen or its antigen.

There are two types: natural and artificial.

Question 4

Define natural active immunity.

Answer 4

Following infection and the creation of the body’s own antibodies and memory cells.

This occurs naturally after being infected by a pathogen.

Question 5

Define artificial active immunity.

Answer 5

Following the introduction of a weakened version of the pathogen or antigens via a vaccine.

This method utilizes vaccines to stimulate an immune response.

Question 6

True or False: Passive immunity results in the creation of memory cells.

Answer 6

False

Passive immunity involves the introduction of antibodies without the body creating its own memory cells.

Question 7

Fill in the blank: Active immunity can be classified into _______ and artificial.

Answer 7

natural

Active immunity can occur naturally through infections or artificially through vaccinations.