WorksheetsCh37: Human Defense System
Total questions: 16
Worksheet time: 1hrs 20mins
A disease causing organism is called...?
Parasite
Pathogen
Microbe
Bacteria
The ability to resist infection is called...?
Immunity
Invulnerability
Resistance
Health
What is the role of interferons in the body?
Surround cells infected by viruses to stop them spreading
Surround bacteria cells to stop them spreading
Put holes in bacterial cell wall to cause them to burst
Cause the body to produce more antibodies to fight infection
The body producing antibodies in response to a pathogen entering from the environment e.g. catching a cold, is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies produced in the body due to a vaccine is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies entering the body from another organism through breastmilk or crossing the placenta is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Antibodies entering the body from another organism by injection is called...?
Active natural immunity
Active artificial immunity
Passive natural immunity
Passive artificial immunity
Which of the following is not part of the general defense system?
Interferons
Complements
Antibodies
Inflammation
Where do lymphocytes and monocytes form?
Bone marrow
Spleen
Thymus
Lymph nodes
A foreign particle that causes the production of antibodies is called...?
Antigen
Monocyte
Pathogen
Leucocyte
Lymphocytes that recognize antigens on the surface of other white blood cells and cause B cells to replicate are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Lymphocytes that destroy abnormal body cells are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Lymphocytes that reduce the immune response of other cells so immune system does not overreact to an infection are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Lymphocytes that survive for years after the infection and speed up any subsequent action of T cells are called...?
Helper T cells
Killer T cells
Suppressor T cells
Memory T cells
Where do T cells (T lymphocytes) mature?
Thalmus
Hypothalmus
Bone marrow
Thymus
What is the role of B lymphocytes?
Recognize an antigen and produce a specific antibody in response
Reduce the immune response of other cells so immune system does not overreact to an infection
Engulf foreign bodies and digest them
Attack pathogens by releasing enzymes to put holes in their cell walls
