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Combined Science: Biology

GCSE · Edexcel · foundation

QuestionsFlashcards

Disease
Defence Against Disease
Development of Medicines
- Antibiotics
  4
- Discovery & Development of New Drugs
  3
Non-Communicable Diseases
- Lifestyle & Non-Communicable Disease
  7
- Cardiovascular Disease
  6

The Organism in the Environment
Human Influences on the Environment
- Human Impact on Biodiversity
  6
- Benefits of Maintaining Biodiversity
  4
Cycles within Ecosystems

Common Infections Flashcards

All 10 cards in this deck

Which type of pathogen causes cholera, and what symptom does it cause?: Bacteria; they cause diarrhoea.
Which type of pathogen causes tuberculosis (TB), and what damage does it cause?: Bacteria; they cause lung damage.
Chalara ash dieback: what damage does it cause, and how is it spread?: Leaf loss and bark lesions; it is spread by airborne fungal spores.
How is the pathogen that causes malaria spread, and how can this be reduced?: By animal vectors — mosquitoes; reduce spread with mosquito nets and insecticides.
Which cells does HIV destroy, and what does this lead to?: White blood cells; this leads to the onset of AIDS.
How is chlamydia spread, and give one way this spread can be prevented.: By sexual intercourse; prevent by using a condom or femidom (or avoid sexual contact, screening, treat with antibiotics).
How is cholera spread, and how can this spread be reduced?: In water; provide clean, treated drinking water and good sanitation.
How is tuberculosis (TB) spread?: It is airborne — in droplets breathed out when an infected person coughs or sneezes.
Give two ways the spread of tuberculosis (TB) can be reduced.: Vaccination (immunisation) and treating infected people with antibiotics.
Also: coughing into a tissue or avoiding close contact with infected people.
How is HIV spread, and how can this spread be reduced?: By sexual contact and other body fluids; use a condom or femidom and do not share needles.