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WorksheetsHuman Defence System Quiz
Total questions: 20
Worksheet time: 11mins
What is the function of lysozyme in the general defence system?
It traps pathogens in mucus
It kills many pathogens in the stomach
It dissolves cell walls of bacteria
It produces sebum
Which of the following is a component of the second line of general defence system?
Skin
Mucus
Phagocytic white blood cells
Cilia
What do macrophages do in the general defence system?
Prevent the spread of virus infections
Destroy pathogens using complement proteins
Engulf bacteria forming phagocytes
Produce antibodies
What is the function of interferon proteins in the general defence system?
Destroy pathogens
Prevent the spread of virus infections
Produce antibodies
Engulf bacteria forming phagocytes
What do lymphocytes do in the specific defence system?
Produce antibodies
Attack body cells and display antigens on their surface
Destroy pathogens using complement proteins
Engulf bacteria forming phagocytes
What is an antigen in the immune system?
A type of lymphocyte
A specific pathogen
A foreign molecule that stimulates the production of antibodies
A protein produced by white blood cells
What is the function of antibodies in the immune system?
Engulf bacteria forming phagocytes
Prevent the spread of virus infections
Protein produced by white blood cells in response to a specific antigen
Stimulate the production of antigens
What are memory cells in the immune system?
Cells that attack body cells and display antigens on their surface
Cells that remain in the body for a long time after an infection is fully overcome
Cells that recognize foreign molecules on the surface of pathogens
Cells that produce antibodies in response to foreign antigens
What is natural active immunity in the immune system?
Involves the production of a person's own antibodies in response to foreign antigens that enter the body
Occurs when a person is given an injection containing antibodies made by another organism
Occurs when a pathogen enters the body in a normal way
Occurs when individuals are given antibodies that were formed by another organism
What is natural passive immunity in the immune system?
Occurs when a pathogen is medically introduced into the body
Occurs when a child gets antibodies from its mother
Occurs when individuals are given antibodies that were formed by another organism
Involves the production of a person's own antibodies in response to foreign antigens that enter the body
What is a vaccine in the context of immunisation?
A protein produced by white blood cells in response to a specific antigen
A type of lymphocyte
A non-disease-causing dose of a pathogen that triggers the production of antibodies
A foreign molecule that stimulates the production of antibodies
What is the role of Plasma B cells in the immune system?
Attack body cells and display antigens on their surface
Mature in the thymus gland
Engulf bacteria forming phagocytes
Produce antibodies
Where do T cells mature in the immune system?
Thymus gland
Spleen
Bone marrow
Lymph nodes
What is the function of helper T cells in the immune system?
Produce antibodies
Attack body cells and display antigens on their surface
Recognize foreign molecules on the surface of pathogens
Recognise antigens and stimulate production of B cells and killer T cells
What is the function of killer T cells in the immune system?
Attack body cells and display antigens on their surface
Destroy infected cells
Produce antibodies
Stimulate the production of antibodies
Occurs when a person is given an injection containing antibodies made by another organism
Artificial passive
Natural passive
Artificial active
Natural active
(a) is the ability to resist disease caused by specific pathogens by the production of antibodies
How many B cells are there ?
3
2
4
1
How many T cells are there
1
2
3
4
Inhibit Immune Response
Memory T cells
Helper T cells
Killer T cells
Suppressor T cells
