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WorksheetsAQA GCSE BIOLOGY - INFECTION & RESPONSE
Total questions: 12
Worksheet time: 6mins
Why is HIV classed as an STI?
It can be passed on through semen and vaginal fluid
It can be passed from mother to baby during pregnancy
It can be passed on through direct contact with infected blood
It can be passed on through skin to skin contact
What does a vaccine contain?
A large amount of an active form of the pathogen
A small amount of an active form of the pathogen
A small amount of a dead or weakened form of the pathogen
A large amount of a dead or weakened form of the pathogen
How do viruses replicate themselves?
Cell division by mitosis
Cell division by meiosis
Invading cells of other organisms
Binary fission
What is a placebo?
A fake drug with no active ingredients
An existing drug with known effects
A new drug being tested
A computer simulation to test a new drug
Which of these DOES NOT prevent pathogens entering the body?
Enzymes in tears to attack pathogens
The skin as a physical barrier
Mucus and hair in the nose to trap pathogens
White blood cells
Who discovered that handwashing and sterilising equipment could reduce rates of infection after surgery?
Louis Pasteur
Alexander Fleming
Joseph Lister
Edward Jenner
Which of these is NOT an antimicrobial?
Paracetamol
Antibiotics
Toilet cleaner
Antifungals
How does the immune response work if the same pathogen attempts to reinfect the body?
The correct antigen for the antibody on the pathogen is made much more quickly
The correct antibody for the antigen on the pathogen is made much more quickly
The correct antigen for the antibody on the pathogen is made much more slowly
The correct antibody for the antigen on the pathogen is made much more slowly
What is the correct sequence of stages for drug development?
Computer models, tests on human tissue cultures, animal testing, clinical trials on humans
Computer models, animal testing, tests on human tissue cultures, clinical trials on humans
Animal testing, computer models, tests on human tissue cultures, clinical trials on humans
Animal testing, tests on human tissue cultures, clinical trials on humans, computer models
How are vaccines used to give active immunity from disease?
White blood cells are injected to kill the pathogen
Memory cells are created which can quickly produce the correct antibody for the pathogen
Antibodies are injected to treat the disease
Antibiotics destroy bacteria by damaging cell walls
Which of the following is NOT a problem with global vaccination programmes?
Vaccines have to travel well
Some people don't want to be vaccinated
Some pathogens change form very frequently
Vaccination prevents epidemics and pandemics
What has led to the development of strains of antibiotic resistant bacteria?
Mutation in DNA of bacteria
Overuse of antibiotics
Patients not completing their course of antibiotics
All of these
