AQA Biology GCSE (9 - 1) - 4.3.1 -
Communicable Diseases
Paper 1 Higher Tier Question Paper AA AA &
Mark scheme (Merged)
pathogens spread (4) - AnswerAir (+Droplet infection)
Water
Direct contact (+Sexual contact)
By a vector
How can we reduce the spread of diseases - AnswerHygiene (Hand washing, ect)
Isolating infected individuals
Destroying or controlling vectors
Vaccination
What are pathogens - AnswerMicroorganisms that cause disease
What types of microorganism can pathogens be (4) - AnswerBacteria
Viruses
Fungi
Protists
How do bacteria cause disease - AnswerDivide rapidly inside body
May produce toxins that affect the body
May directly damage your cells
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, How do viruses cause disease - AnswerTake over the cells of your body
Live and reproduce inside those cells
This damages and destroys them
List some viral diseases - AnswerMeasles
HIV/AIDS
Tobacco mosaic virus
How is measles spread - AnswerDroplet transmission
What are the symptoms of measles - AnswerFever
Red skin rash
What are the long term effects of measles - AnswerBlindness
Brain damage
What is the treatment for measles - AnswerNo cure
Children vaccinated against it
How is HIV/AIDS spread - AnswerSexual contact with an infected individual
Exchange of bodily fluids from an infected individual
What are the symptoms of HIV/AIDS - AnswerMild flu-like symptoms
What are the long term effects of HIV/AIDS - AnswerDamages immune system
Become very susceptible to opportunistic diseases
What are the treatments for HIV/AIDS - AnswerNo cure
mailto:https://www.stuvia.com/user/Stuviaguider?subject=https://www.stuvia.com/user/St
uviaguider
Communicable Diseases
Paper 1 Higher Tier Question Paper AA AA &
Mark scheme (Merged)
pathogens spread (4) - AnswerAir (+Droplet infection)
Water
Direct contact (+Sexual contact)
By a vector
How can we reduce the spread of diseases - AnswerHygiene (Hand washing, ect)
Isolating infected individuals
Destroying or controlling vectors
Vaccination
What are pathogens - AnswerMicroorganisms that cause disease
What types of microorganism can pathogens be (4) - AnswerBacteria
Viruses
Fungi
Protists
How do bacteria cause disease - AnswerDivide rapidly inside body
May produce toxins that affect the body
May directly damage your cells
mailto:https://www.stuvia.com/user/Stuviaguider?subject=https://www.stuvia.com/user/St
uviaguider
, How do viruses cause disease - AnswerTake over the cells of your body
Live and reproduce inside those cells
This damages and destroys them
List some viral diseases - AnswerMeasles
HIV/AIDS
Tobacco mosaic virus
How is measles spread - AnswerDroplet transmission
What are the symptoms of measles - AnswerFever
Red skin rash
What are the long term effects of measles - AnswerBlindness
Brain damage
What is the treatment for measles - AnswerNo cure
Children vaccinated against it
How is HIV/AIDS spread - AnswerSexual contact with an infected individual
Exchange of bodily fluids from an infected individual
What are the symptoms of HIV/AIDS - AnswerMild flu-like symptoms
What are the long term effects of HIV/AIDS - AnswerDamages immune system
Become very susceptible to opportunistic diseases
What are the treatments for HIV/AIDS - AnswerNo cure
mailto:https://www.stuvia.com/user/Stuviaguider?subject=https://www.stuvia.com/user/St
uviaguider
