AQA Biology B1.1: Keeping Healthy

?

1. The skin prevents many pathogens entering the body. Which of the following is another bodily defence mechanism?

  • Epidermal pores secrete a toxin deadly to most pathogens, but undetectable to us without scientific equipment
  • Pathogens become trapped by mucus, and are killed by the stomach's hydrochloric acid
  • Salivary enzymes, such as amylase, break down the microorganisms until they're ineffective
  • The body's microvilli ingest and destroy pathogens
1 of 20

Other questions in this quiz

2. Which of the following is the name for the small poisonous substances emitted by pathogens?

  • Toxins
  • Toxilla
  • Toxicons
  • Toxans

3. Hungarian physician Ignaz Semmelweis employed what method of infection prevention in many hospitals?

  • The Semmelweis ward rotation method for patients
  • Use of disinfectant on all medical instruments following use
  • Hand washing before treatments and between wards
  • The wearing of face masks by all medical staff

4. Antibiotics are drugs which kill pathogens, or infective bacteria. True or false?

  • True: Antibiotics destroy the pathogens, thereby killing them. They are 'anti-bio', 'against-life'
  • False: Antibiotics merely reduce the pathogen to an ineffective and harmless state. For efficiency, these ineffective pathogens can then be removed for use in vaccines, for immunisation

5. Of which bodily system are white blood cells (leukocytes) a part?

  • The nervous (neurological) system
  • The endocrine system
  • The immune system
  • The digestive system
View more questions

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Healthy living resources »