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Questions and Answers
Which of the following accurately describes the process of phagocytosis?
Which of the following accurately describes the process of phagocytosis?
- The immune system is introduced to a dead or altered form of the pathogen.
- The white blood cells engulf and digest a pathogen. (correct)
- The white blood cells produce complementary antibodies that attach to the antigen.
- The antibodies slowly increase, peak at around ten days and then gradually decrease.
What is the purpose of herd immunity?
What is the purpose of herd immunity?
- To prevent individuals from becoming ill from a specific disease.
- To reduce the chance of people coming into contact with specific pathogens. (correct)
- To protect the individual who has been vaccinated against the specific disease.
- To cause a mass infection among the majority of the population.
Which scenario results in the highest level of protection against a specific disease?
Which scenario results in the highest level of protection against a specific disease?
- A few are not vaccinated against the disease, and they are ill and contagious.
- The majority of the population are vaccinated and healthy against a specific disease, a few are not vaccinated but well. (correct)
- Most of the population are not vaccinated against the specific disease but are well, some are vaccinated and healthy, and a few are not vaccinated, but ill and contagious.
- The majority of the population are not vaccinated against a specific disease, however, a few people are ill and contagious.
