11.1 Body Defense - Set 1 Quiz

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Which of the following is true on the difference between antigen and pathogen?

	Antigen	Pathogen
(A)	A molecule that capable to trigger an immune response in the host organism	An agent that can cause disease or illness in a host
(B)	Can cause disease	Can be molecule on top of the pathogen that triggers an immune response
(C)	An organism	Can be a protein, polysaccharides or lipids

Difficulty Level: Easy

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Which of the following statement is true about the immunity?

I.		The ability of the body to fight against pathogens by producing specific antibodies

II.		Lymphocytes are kept in the body as memory cells after the first infection

III.		The memory cells are ready when the same pathogens invade the body in the future

IV.		The presence of these memory cells stay in the body for years; the body said to be immune with this pathogens

Difficulty Level: Medium

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Which of the following is the first line of defence?

Difficulty Level: Easy

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What is a memory cell in the third-line defence?

I.		Arise from a T cell

II.		Arise from a B cell

III.		Function to produce antibodies

IV.		Function to keep the information of invading pathogen that initiates the response

Difficulty Level: Hard

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Which of the following leucocyte produces antibodies?

Difficulty Level: Easy