Of the different pathways to activate the 'Complement Cascade', both the lectin and the alternate pathways are considered a pure innate immunity response.
a. true
b. false
Ans: a. true
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The pathogenesis of Neisseria gonorrhoeae is dependent upon phase variation. Which of the following statements concerning phase variation is incorrect?
A. Phase variation allows Neisseria cells to escape immune detection. B. Phase variation involves alterations to the structure of the fimbriae. C. Phase variations results from genetic rearrangements in the Neisseria chromosome. D. Phase variation results in Neisseria cells adopting a pleomorphic morphology.
Amino acids like glutamate stimulate ____ receptors on the tongue
a. bitter b. salty c. sour d. sweet e. umami
Which of the following pairs correctly matches the adrenal gland zone, or area, with the class of hormones it produces?
A) zona glomerulosa: mineralocorticoids B) medulla: glucocorticoids C) zona fasciculata: catecholemines D) zona reticularis: aldosterone
Which is NOT a function of capsules or slime layers?
a. development and maintenance of biofilms b. evasion of destruction by immune cells c. attachment to solid surfaces d. protection from osmotic lysis