What are NOD proteins?
A) cytoplasmic receptors of microbial molecules
B) cellular signals triggering inflammation
C) receptors of microbial molecules in phagocyte cell membranes
D) activators of complement
E) chemotactic factors
A
Bloom's Taxonomy: Comprehension
Section: The Body's Second Line of Defense
Learning Outcome: 15.15
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What type of methods are used in microbial systematics? Why are multiple methods used to characterize and classify microbial species? Be sure to define the methods and describe the general strengths and weaknesses of each type
What will be an ideal response?
An artificial pacemaker supplements the actions of
a. sympathetic neurons. b. the atrioventricular node. c. the medulla oblongata. d. the sinoatrial node. e. the heart muscle itself
You are classifying an organism and trying to determine to which domain it belongs. The organism is unicellular and was isolated from a very unusual environment. This organism probably belongs in which domain?
A) Eukarya B) Archaea C) Bacteria D) None of the domains above is correct.
UV radiation primarily mutagenizes cells because ________ are formed in the DNA, and that damage is often the cause for death of overexposed cells
a. pyrimidine dimers b. purine dimers c. hydroxyl radicals d. double-stranded breaks