topic 5-health and disease

Question 1

what’s is the definition of health

Answer 1

a state of complete physical mental and social wellbeing and the absence of disease”

Question 2

define communicable disease

Answer 2

diseases that can spread between individuals

Question 3

define non communicable disease

Answer 3

cabt be transmitted between individuals

Question 4

name the 4 pathogens

Answer 4

viruses, bacteria, fungi and protists

Question 5

how do viruses work

Answer 5

they have to infect living cells (host cells) in order to reproduce

Question 6

what’s is the lytic pathway

Answer 6

the destruction of the infected cell and membrane

Question 7

what is the lysogenic pathway

Answer 7

is where ONLY the DNA is replicated not translated into proteins

Question 8

what are sti’s

Answer 8

sexually transmitted disease

Question 9

what is chlamydia

Answer 9

a kind of bacterium, it can only reproduce inside host cells

Question 10

what is HIV

Answer 10

it kills while blood cells which are important in the immune response

Question 11

how do you stop the spread of HIV

Answer 11

condoms and not sharing needles

Question 12

how is HIV spread

Answer 12

bodily fluids

Question 13

how do condoms work

Answer 13

they act as a barrier to block the bodily fluids from meeting

Question 14

how does HIV lead to aids

Answer 14

the persons immune system deteriorates, because of this the person becomes very vulnerable

Question 15

name a physical barrier in plants

Answer 15

waxy cuticle which is a barrier to stop pests entering and damaging them

Question 16

name a chemical barrier for a plant

Answer 16

aspirin which kills the fungal pathogens and bacteria

Question 17

name a symptom of disease in plants

Answer 17

yellow leaves which is from nutrient deficiency

Question 18

name physical barriers for a human

Answer 18

the skin, hairs and mucus

Question 19

name chemical barriers for a human

Answer 19

stomach acid, lysozymes in the eyes

Question 20

what do B-lymphocytes do

Answer 20

they recognise the antigen on the pathogen and produce antibodies

Question 21

what is a memory lymphocyte

Answer 21

they remain in the body for a long time and remember a specific antigen

Question 22

what is immunisation

Answer 22

is injecting dead or inactive pathogens into the body which trigger memory lymphocytes

Question 23

pros of immunisation

Answer 23

prevent a large percent of ppl become immune causes herd immunity

Question 24

cons to immunisation

Answer 24

you can have bad reactions to the vaccine and isn’t always effective