A Level Biology Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master the A Level Biology Exam. Use flashcards and multiple choice questions with hints and explanations to ace your test. Start your journey to excellence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the main characteristic of artificial active immunity?

Development of immunity without prior exposure to pathogens
Immunity resulting from exposure to a safe form of a pathogen, such as through vaccination
The transfer of antibodies from one organism to another
Immediate protection against pathogens

The correct answer is: Immunity resulting from exposure to a safe form of a pathogen, such as through vaccination

The main characteristic of artificial active immunity is that it results from exposure to a safe form of a pathogen, such as through vaccination. This type of immunity is developed when an individual is exposed to an antigen in a controlled manner, typically through a vaccine that contains a weakened, inactivated, or subunit form of a pathogen. This exposure stimulates the immune system to produce its own antibodies and memory cells, allowing it to recognize and combat the actual pathogen if encountered in the future. This distinguishes it from other types of immunity, such as natural immunity, which occurs after an infection, or passive immunity, where antibodies are transferred from one individual to another, rather than produced by the individual's own immune system. Therefore, the process of vaccination is a key feature of artificial active immunity, making it a proactive measure to enhance one's immune defense against specific diseases.