Biology Forums - Study Force

Which type of cell is the most effective to attack multicellular parasites such as tapeworms?
 
  A. Basophils
  B. Eosinophils
  C. Macrophages
  D. Neutrophils

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(Question 2) Which class of chemical messenger facilitates white blood cell formation in bone marrow?
 
  A.  Interleukins
  B.  Colony-stimulating factors
  C.  Tumor necrosis factors
  D.  Interferons

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(Question 3) In addition to creating a physical barrier to pathogen entry, mucus contains antimicrobial substances such as IgA.
 
  Indicate whether this statement is true or false.

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(Question 4) Nonspecific immunity is another name for
 
  A. adaptive immunity.
  B. innate immunity.
  C. cell-mediated immunity.
  D. acquired immunity.

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(Question 5) When a chemical messenger has a short half-life, it means that
 
  A. it will not have an extremely prolonged effect on target cells.
  B. it will not be eliminated quickly from the blood.

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(Question 6) Interferons are one of the classes of
 
  A. interleukins.
  B. cytokines.
  C.  colony-stimulating factors.
  D. tumor necrosis factors.

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(Question 7) In terms of their chemical structure, cytokines are _______; their function is to serve as _________.
 
  A.  
  proteins; chemical messengers
 
  B.  
  proteins; receptors
 
  C.  
  steroids; chemical messengers.
 
  D.  
  steroids; receptors.

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(Question 8) Cytokines are agents that affect neighboring cells without triggering systemic effects.
 
  Indicate whether this statement is true or false.

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(Question 9) A delayed response to a specific antigen is provided by
 
  A. adaptive immunity.
  B. innate immunity.
  C. inflammation.

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(Question 10) Dendritic cells of the skin are derived from
 
  A. macrophages.
  B. B-lymphocytes.
  C. T-lymphocytes.
  D. monocytes.
  E. neutrophils.

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