_____ 25) How is a secondary i

_____ 25) How is a secondary immune response different from aprimary immune response?

A) it is faster and more effective B) it is slower, but moreeffective C) it is faster, but less effective D) it is slower, andless effective E) there is no difference

_____ 19) Which of the following is not a function ofantibodies?

A)opsonization                                B) activating complement proteins

C) activating T-helpercells           D) enhancingphagocytosis         E) neutralization

_____ 13) The complement system involves

A) the production of antigens and antibodies

B) serum proteins involved in non-specific defense

C) a set of genes that distinguish foreign cells from bodycells

D) the elimination of undigested remains of microorganisms

E) the production of precursors molecules from T-helpercells


25) How is a secondary immune response different from a primaryimmune response?

A. It is faster and more effective.Secondary immune response is the reaction of the immune systemoccurs as a result of subsequent exposure to the same antigen. Itresponses in a shorter time when compared to primary immuneresponses. The responses are stronger whereas the primary immuneresponse is weaker.

19) Which of the following is not a function of antibodies?

c. activating T-helper cells.

A. oponization – stimulate the removal of pathogens and othercells by macrophages.

B. activating complement protein – Antibody has two specificproteins that help to bind to the antigen.

D. enhancing Phagocytosis – The complement system attacks thepathogen for phagocytosis or lysis.

E. neutralization – Antibodies prevent the pathogen fromdamaging of the cells.

13) The complement system involves

B) serum proteins involved in non-specificdefense. The plasma proteins activated when theantibody binds to the antigen. The protein interacts with oneanother to form a complement cascade that allows fluid to enterinto the cell and causes cell lysis.

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