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WorksheetsImmune System
Total questions: 17
Worksheet time: 9mins
The immune system
Helps the body to defend against infectious organisms and other invaders
enables us to cope with and process our emotions
Helps us to digest food
Helps people to sense their surroundings
An infectious disease is caused by
a pathogen entering our internal environment and either growing too much or producing substances that are harmful to our internal environment
toxic chemicals entering our internal environment and causing cell death
poor diet/ nutrition
Lack of exercise
The bodies immune system has
3 lines of defense
2 lines of defense
1 line of defense
Which of the following help to make up the 1st line of defense?
white blood cells, histamine
t cells, b cells antibodies
skin, hair, chemical secretions such as mucus, saliva and tears
Skin, histamine
The first line of defense helps to
prevent pathogens from entering body
fight pathogens once they have entered the body
remember pathogens that have previously invaded
The second line of defense helps to
prevent pathogens from entering body
fight all types pathogens once they have entered the body
fight off specific pathogens, remember pathogens that have previously invaded,
The third line of defense helps to
prevent pathogens from entering body
fight all types pathogens once they have entered the body
fight off specific pathogens, and remember pathogens that have previously invaded
Which is not part of the second line of defense
Histamine
Macrophages
white blood cells
t cells
Histamine is a chemical involved in the second line of defense. Which of the statements about histamine following is false
Histamine promote blood flow to the area
Histamine eats pathogens
Histamine is responsible for swelling
Histamine is responsible for itching
Macrophages are a type of white blood cell involved in the second line of defense. Macrophages.
Eat pathogens that have entered the body
promote blood flow
secrete antibodies
secrete antigens
Which of the following are involved in the 3rd line of defence?
B cells, T helper cells, Killer T cells, Antibodies
B cells, T helper cells, Killer T cells, Antigens
skin, hair, chemicals such as mucus, tears and saliva
Histamines, and Phagocytic White blood cells (macrophages)
Phagocytosis is
a cell eating
a phago drinking
a cyst
a process involving play do
Antigens
Are chemical markers on pathogens
Are a type of white blood cell
Are part of the bodies 3rd line of defense against pathogens
Antibodies are part of the 3rd line of defense they
bind to antigens, preventing the spread of pathogens and promoting phagocytosis by white blood cells
Are a type of white blood cell which eats pathogens
Are a type of white blood cell which activates other white blood cells
T helper cells are a type of white blood cell involved in the 3rd line of defense. T helper cells
Help to activate other white blood cells such as killer T cells and B cells
Produce antibodies
Produce antigens
Kill pathogenic cells
B cells are a type of white blood cell involved in the 3rd line of defense. B cells
Help to activate other white blood cells such as killer T cells and B cells
Produce antibodies
Produce antigens
Kill pathogenic cells
Killer T cells are a type of white blood cell involved in the 3rd line of defense. T cells
Help to activate other white blood cells such as killer T cells and B cells
Produce antibodies
Produce antigens
Kill specific pathogenic cells
