White Blood Cells And Immunity

Question 0

What is a pathogen

Answer 0

A microorganism that causes disease

Question 1

What are the two types of white blood cell?

Answer 1

Phagocytes and lymphocytes

Question 2

What is the job of the immune system?

Answer 2

To destroy pathogens in your body.

Question 3

What does non-specific mean, in terms of white blood cells?

Answer 3

That they attack anything that’s detected as ‘foreign’

Question 4

Are phagocytes specific or non-specific?

Answer 4

Non-specific

Question 5

What do phagocytes do?

Answer 5

Detect ‘foreign’ things in the body and engulf and digest them.

Question 6

What do lymphocytes produce?

Answer 6

Antibodies

Question 7

What is an antigen?

Answer 7

A unique molecule on the surface of a pathogen.

Question 8

Are lymphocytes specific or non-specific?

Answer 8

Specific

Question 9

What do lymphocytes do?

Answer 9

They detect foreign antigens and then produce proteins called antibodies which mark them out to be destroyed by other white blood cells. The antibodies produced are specific and will only target that type of antigen.

Question 10

What are memory cells?

Answer 10

Lymphocytes that stay in the body after original infection has been fought off. They can reproduce very fast if the same antigen enters the body a second time.