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Worksheets4.2 BODY DEFENCE
Total questions: 20
Worksheet time: 20mins
Which of these is not an NON- SPECIFIC body defence mechanism?
blood
ear wax
sebum
tears
What is the role of nasal mucus?
collect dead cells
lubricate the nasal passage
make phlegm
trap particles
How many lines of defence in our body?
1
2
3
4
Which of the following lines are non-specific defense?
First line
Second line
Third line
The protection of the body against many type of pathogens is called ................................... defense.
Non-specific
Specific
Which of the following is involved in the second line of defence?
White blood cell
Skin
Tears
Hydrochloric acid in stomach
Which of the following is a specific defense in the body?
First line
Second line
Third line
The production of antibody to destroy specific pathogens in the body is called .......................... defense.
non-specific
specific
How the first line of defense could fail? (3 answers)
Blood vessel ruptures
Lung cells exposed to pathogens
Contact of fungus
Crying or sweating
Which of the following is involved in the second line of defence?
White blood cell
Skin
Tears
Hydrochloric acid in stomach
What is the role of nasal mucus?
collect dead cells
lubricate the nasal passage
make phlegm
trap particles
Proteins that have a specific fit to a specific antigen are called
allergens
antibodies
antihistamines
none of these
Phagocytes kill pathogens by
engulfing and digesting them
producing antibodies
What is antigen?
A foreign substances that comes from outsides the body and induces the production of antibodies
A foreign substances that comes from inside the body and induces the production of antibodies
A foreign substances that comes from outsides the body and prevent the production of antibodies
How the pathogen enter the body?
Through the respiratory system
Through the digestive system
Through excretory system
Through skin
The ability of body system to resist pathogens before body it infected by the pathogens
Immunity
Pathogen
Antigen
Antibody
How the microorganism can also eliminated from the body?
Urine
Faeces
Vomiting
