Definitions +Phagocytes +Lymphocytes

Question 1

what is meant by communicable

Answer 1

a disease that can be passed on

Question 2

what is meant by non communicable

Answer 2

a disease that can’t be passed on

Question 3

name the 6 ways to spread disease

Answer 3

1) in the air
2) insects/‘mosquitoes
3) water/food
4) direct contact
5) animals
6) bodily fluids

Question 4

what is a pathogen

Answer 4

microbe that spreads disease

Question 5

what are the 4 types of pathogens

Answer 5

1) bacteria
2) virus
3) fungus
4) protist

Question 6

what is a lymphocyte

Answer 6

white blood cell that produce antibodies and antitoxins to attack microbes

Question 7

what is a phagocyte

Answer 7

white blood cell that engulfs and destroys bacteria

Question 8

what is an antigen

Answer 8

marker on pathogens surface

Question 9

what is an antitoxin

Answer 9

protein that binds to toxins by bacteria

Question 10

what is an antibody

Answer 10

protein produced by lymphocyte that binds to a specific pathogen

Question 11

is lymphocytes producing antibodies a specific or none specific response

Answer 11

specific

Question 12

what do antitoxins do

Answer 12

neutralise then toxins released by pathogens

Question 13

what is created after the first infection

Answer 13

lymphocytes make memory cells

Question 14

why do lymphocytes do this

Answer 14

so the cells can ‘remember’ how to combat the pathogens ; if the encounter the same pathogen again the produce large quantities of antibodies

Question 15

what does this mean

Answer 15

the pathogen is killed before we are ill and are therefore immune