FcRn has which of the following characteristics? (Select all that apply.)
a. It binds to monomeric IgA in acidified endocytic vesicles.
b. It transports IgG out of the blood into tissue across the endothelium.
c. It is similar in structure to an MHC class II molecule.
d. It protects IgA from degradation by plasma proteases.
e. Two molecules of FcRn are required to bind to each Fc region.
B,E
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School nurses have narrowly focused responsibilities.
Answer the following statement true (T) or false (F)
Teachers can teach attention by
A. limiting the amount of information students must attend to. B. helping students tune out irrelevant stimuli. C. helping students attend to the appropriate environmental cues. D. All of these.
What range of exercise intensity is necessary to improve cardiorespiratory fitness?
What will be an ideal response?
Your 80-year-old aunt lives in an independent-living retirement center. She still has a very sharp memory. All of the following probably apply to her EXCEPT that she
A) has exercised regularly over the years. B) remains physically active even now. C) has never exercised and prefers to spend all of her time alone. D) keeps her mind active by reading and playing the piano.