immunity & infection

Question 1

what is communicable (infectious disease)?

Answer 1

can be passed between people

Question 2

what is non-communicable disease?

Answer 2

cannot be passed

Question 3

what do tuberculosis, meningitis, tetanus, pertussis and syphilis all have in common?

Answer 3

vaccine preventable disease

Question 4

Pathogens:bacteria what is. it?

Answer 4

Bacteria: Most abundant living organisms
(strep throat)

Question 5

Pathogens: What is a virus?

Answer 5

lack function to grow & reproduce by themselves=parasites-> take what they need from host cells they invade

Question 6

Pathogen: what is fungi

Answer 6

Fungi: Organisms (moulds, yeast) that absorb food from organic matter.

Question 7

Pathogen: what is protozoa?

Answer 7

Protozoa: Single-celled organisms  developing countries. e.g. malaria

Question 8

pathogen: parasitic worms example

Answer 8

tapeworms

Question 9

defence against pathogens: what is the first defence?

Answer 9

PHYSICAL & CHEMICAL BARRIERS (SKIN)

Question 10

WHAT IS the 2nd Dfence against Pathogens?

Answer 10

IMMUNE SYSTEM : Dfender is the White blood cells ( always produced in bone marrow)

There is two types of lymphocytes: B cells & Tcells

Question 11

what is autoimmune disorder?

Answer 11

lupus, rheumatoid arthritis

Question 12

what is antigens?

Answer 12

non-self markers that immune response

Question 13

summary of the phases: Phase 1?

Answer 13

viruses invade the body and take over the body cells to replicate

Question 14

what is phase 3?

Answer 14

Killer T cells and NK cells destroy the infected body cells. B cells produce antibodies that bind virsuses and mark them for destruction by macrophages