Chapter 5- Communicable Diseases

Question 1

How are they spread?

Answer 1

Air (influenza), direct contact (HIV), water (raw foods)

Question 2

What is a microbe?

Answer 2

Pathogen that causes diseases

Question 3

Physical barriers-

Answer 3

Eyelashes, skin, stomach acid, hair, earwax

Question 4

Phagocytosis-

Answer 4

Stops bacteria spreading by releasing chemicals

Question 5

Lymphocytes

Answer 5

Destroyed pathogens l, white blood cells. Reproduce quickly

Question 6

WBC can (1)

Answer 6

Ingest pathogens (phagocytosis)

Question 7

WBCS can (2)

Answer 7

Produce antibodies, they are specific type of pathogen.

Question 8

WBCS (3)

Answer 8

Produce antitoxins to neutralise the reaction

Question 9

Lymphocytes

Answer 9

Production of antibodies, broken down

Question 10

Phagocytosis

Answer 10

Engulfs pathogens and breaks them down

Question 11

Antitoxins

Answer 11

Neutralise reaction

Question 12

Vaccine-

Answer 12

Contains dead/ inactive reaction- triggers immune response.

Question 13

what is communicable diseases?

Answer 13

they cab spread from person to person and be like bacteria, viruses, parasites and fungi. an example is measles and malaria

Question 14

what are the factors that effect the immune system?

Answer 14

bad diet, stress or life situation (eg not having the accessibility to medicine)

Question 15

what do antibiotics and antiseptics do?

Answer 15

antibiotics stop the growth of bacteria and antiseptics stop the growth of fungi