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The immune system recognises which part of a pathogen?
Antibiotic
Antigen
Active site
Antibody
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The immune system recognises which part of a pathogen?
Antibiotic
Antigen
Active site
Antibody
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What is a pathogen?
A transmissible disease
A phagocyte that engulfs bacteria
A disease-causing organism
A bacterial cell
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In many multicellular animals, pathogens are recognised as foreign and are attacked by the immune system.
Which of the following may be produced during an immune response?
Antigens
Antibiotics
Pathogens
Antibodies
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Which body defence listed below acts as a chemical barrier?
Mucus lining the airways
Antibody production
Hairs in the nose
Phagocytosis
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Which of the options below is an example of a transmissible disease?
Obesity
Tooth decay
Cholera
Rickets
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The human body has a number of barriers to prevent infection by pathogens some of which are listed below.
Which of these are examples of mechanical barriers?
1 and 3
1, 2 and 4
2 and 4
1, 3 and 5
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Which of the following diseases listed below are not caused by infectious pathogens?
2 only
1 and 4
2 and 3
2, 3 and 4
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Which of the following diseases can be transmitted by contact with contaminated surfaces?
Athletes foot and malaria
Salmonella and typhoid
Influenza and dengue fever
Salmonella and athletes foot
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When a tissue is transplanted from a female donor to a male recipient, it may be rejected.
What is the main cause of this rejection?
The presence of an X chromosome
The action of platelets
The action of antibiotics
Antibody production
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Components of the blood from a mammal are shown in the diagram below.
In which component would you expect to find the remains of the breakdown of bacterial cells.
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What happens when a person is vaccinated against measles?
type of immunity | production of memory cells? | |
A |
passive |
yes |
B |
passive |
no |
C |
active |
yes |
D |
active |
no |
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