Antibodies are classified by size, location, and function, and which one of the following represents the most common type of immunoglobulin?
A) IgM
B) IgG
C) IgA
D) IgD
E) MHC
B
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Which of the following is NOT part of the general response of cells during cellular communication?
A. The cell automatically returns to its normal activities after the signal has exerted its effect. B. A receptor on the outside of the cell binds to a specific signal molecule that it is designed to capture. C. A cell-surface receptor molecule becomes activated by binding to its molecular signal. D. An activated cell-surface receptor transfers the signal to the interior of the cell. E. The signal is carried and amplified inside the cell by binding to a series of specific proteins, affecting cellular activities according to the type of signal involved.
Pattern recognition is involved in innate immunity
Indicate whether this statement is true or false.
Mr. Johnson was becoming slightly deaf. To test his hearing, his doctor held a vibrating tuning fork tightly against Mr. Johnson's jaw. This sent vibrations through the bones of the skull, setting the fluid in the cochlea in motion. Mr. Johnson could hear the tuning fork this way, but not when it was held away from the skull a few inches from his ear. His hearing problem is most likely attributed to the
A. auditory nerve leading to Mr. Johnson's brain. B. fluid of the cochlea. C. auditory cortex of Mr. Johnson's brain. D. hair cells in the cochlea. E. tympanum or the bones of the middle ear.
________ are numerous short, branching projections from the neuron that create a huge surface for receiving signals from other cells
Fill in the blank(s) with correct word