Podcast
Questions and Answers
Which of the following is not a type of pathogen?
Which of the following is not a type of pathogen?
- Bacterium
- Fungus
- Virus
- Protist (correct)
What is the primary function of phagocytosis?
What is the primary function of phagocytosis?
- To engulf and destroy pathogens (correct)
- To produce insulin
- To treat water and remove contaminants
- To provide active immunity against diseases
Which of the following diseases is not considered to be transmissible?
Which of the following diseases is not considered to be transmissible?
- Measles
- Influenza
- Type 1 diabetes (correct)
- Malaria
What is the primary purpose of vaccination?
What is the primary purpose of vaccination?
Which of the following is the main function of white blood cells?
Which of the following is the main function of white blood cells?
What is the primary goal of water treatment?
What is the primary goal of water treatment?
What is the primary purpose of the chemical barriers in the body's non-specific defense system?
What is the primary purpose of the chemical barriers in the body's non-specific defense system?
Which of the following is the key difference between active immunity and passive immunity?
Which of the following is the key difference between active immunity and passive immunity?
What is the primary function of memory cells in the immune system?
What is the primary function of memory cells in the immune system?
Which of the following is the best definition of an antigen?
Which of the following is the best definition of an antigen?
What is the primary function of the mechanical barriers in the body's non-specific defense system?
What is the primary function of the mechanical barriers in the body's non-specific defense system?
Which of the following is the best definition of an autoimmune disease?
Which of the following is the best definition of an autoimmune disease?
Flashcards
Phagocytosis function
Phagocytosis function
Engulfing and destroying pathogens.
Vaccination purpose
Vaccination purpose
Acquire active immunity against diseases.
White blood cells' function
White blood cells' function
Engulf and destroy pathogens.
Water treatment goal
Water treatment goal
Signup and view all the flashcards
Chemical barriers function
Chemical barriers function
Signup and view all the flashcards
Active vs. Passive Immunity
Active vs. Passive Immunity
Signup and view all the flashcards
Memory cells' function
Memory cells' function
Signup and view all the flashcards
Antigen definition
Antigen definition
Signup and view all the flashcards
Mechanical barriers function
Mechanical barriers function
Signup and view all the flashcards
Autoimmune disease definition
Autoimmune disease definition
Signup and view all the flashcards
Non-transmissible disease example
Non-transmissible disease example
Signup and view all the flashcards
Pathogen types not
Pathogen types not
Signup and view all the flashcards
Study Notes
Immunity and Diseases
- Active immunity: Resistance developed through production of specific antibodies in response to a pathogen, either by infection or vaccination, providing long-lasting immunity with memory cells.
Antibodies and Antigens
- Antibodies: Proteins produced by white blood cells (lymphocytes) in response to a specific antigen, triggering an immune response, with binding sites complementary to a particular antigen.
- Antigen: A unique chemical present on the surface of a cell that induces an immune response.
Immune System and Diseases
- Autoimmune disease: A disease where the immune system targets and destroys its own healthy body cells, such as type 1 diabetes.
- Transmissible disease: A disease caused by a pathogen that can be spread between hosts, either directly or indirectly.
Defence Mechanisms
- Chemical barrier: A non-specific defence that destroys invading pathogens, e.g., mucus, stomach acid.
- Mechanical barrier: A non-specific defence that physically blocks the entry of a pathogen, e.g., skin, nose hairs.
- Phagocytosis: The process by which white blood cells (phagocytes) engulf and destroy pathogens.
Immunity and Vaccination
- Passive immunity: Resistance acquired via the transfer of antibodies, e.g., from mother to infant through breastfeeding, providing short-term immunity without memory cells.
- Vaccination: The deliberate exposure of an individual to a harmless pathogen to provide active immunity.
Other Key Concepts
- Host: The organism from which a pathogen or parasite obtains nutrients and/or shelter.
- Memory cell: A type of white blood cell that remains in the blood and provides immunological memory to a specific antigen on a pathogen.
- Pathogen: A disease-causing organism, e.g., virus, fungus, bacterium, protist.
- Water treatment: Any process that improves water quality and ensures it is not contaminated by disease-causing bacteria.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of definitions and concepts related to diseases and immunity in the CAIE Biology IGCSE Topic 10. Includes terms like active immunity, antibodies, and more. Enhance your understanding of diseases and immunity.
