The most abundant class of antibodies in serum is
A) IgG.
B) IgM.
C) IgA.
D) IgD.
E) IgE.
A
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A farmer has a localized, painful skin infection. Cultures are set up, and <-hemolytic, cata-lase-negative, and gram-positive bacilli are isolated. Based on this information, which of the fol-lowing biochemical results are expected—urease, H2S production in TSI, and nitrate reduction?
a. Positive urease, positive TSI, and positive nitrate b. Positive urease, negative TSI, and nega-tive nitrate c. Negative urease, positive TSI, and nega-tive nitrate d. Negative urease, negative TSI, and nega-tive nitrate
If you were to compare the resting potential of a neuron to a battery, which way is the battery oriented?
A typical AA battery has a potential of 1.5V. One can think of the potential in a neuron as having similarities to that of a battery. A. positive terminal outside of the cell, and negative terminal inside B. positive terminal inside of the cell, and negative terminal outside C. positive terminal pointing toward the axon, negative terminal toward the dendrite D. positive terminal pointing toward the dendrite, negative terminal toward the axon E. both terminals inside the cell soma
That carton of milk has been sitting in the refrigerator for several weeks, and everyone in your house has been complaining about it–it is full of bacteria! Predict what will happen to those bacteria as time goes on
What will be an ideal response?
When an exergonic reaction is used to fuel an endergonic reaction, the reactions are referred to as being
a. oppositional. b. complimentary. c. coupled. d. paired.