B3 - Infection And Response Flashcards
What is the definition of pathogens?
Pathogens are microorganisms that cause disease.
True or False: Bacteria are the only type of pathogens.
False
What are the three main types of pathogens?
Bacteria, viruses, and fungi.
Fill in the blank: ________ are single-celled organisms that can be beneficial or harmful.
Bacteria
What is an example of a fungal infection?
Athlete’s foot
What is the function of the immune system?
To protect the body against pathogens.
True or False: Antibodies are produced by white blood cells.
True
What is a vaccine?
A substance that stimulates the immune system to provide immunity against a specific disease.
Multiple choice: Which of the following is NOT a method of disease transmission? A) Direct contact B) Airborne C) Photosynthesis
C) Photosynthesis
What type of white blood cell engulfs pathogens?
Phagocytes
Fill in the blank: ________ immune response is the body’s first line of defense against pathogens.
Non-specific
What is the role of T-cells in the immune response?
To recognize and destroy infected cells.
True or False: Antibiotics are effective against viral infections.
False
What is herd immunity?
When a large percentage of a population is immune to a disease, reducing its spread.
Multiple choice: Which of the following is a viral disease? A) Tuberculosis B) Measles C) Ringworm
B) Measles
What do we call the substances that can trigger an immune response?
Antigens
Fill in the blank: Vaccines often contain a weakened or inactive form of a ________.
Pathogen
What is the primary function of B-cells?
To produce antibodies.
True or False: The body can remember pathogens after an initial infection.
True
What is the difference between active and passive immunity?
Active immunity is developed after exposure to a pathogen, while passive immunity is acquired from another source.
Multiple choice: Which of the following is a bacterial disease? A) Influenza B) Cholera C) HIV
B) Cholera
What is the role of memory cells in the immune system?
To provide long-term immunity by remembering past infections.
Fill in the blank: The ________ response is specific to a particular pathogen.
Adaptive
What can happen if a person does not receive vaccinations?
They may be at higher risk for preventable diseases.
True or False: All pathogens are harmful to humans.
False
