The plasma protein responsible for the synthesis of antibodies is ___
a. fibrinogen.
b. prothrombin.
c. gamma globulin.
d. Globulin.
Answer: d. Globulin
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Peroxisomes
A) both generate and break down hydrogen peroxide. B) pull the chromosomes toward the poles of a dividing cell. C) manufacture proteins. D) manufacture most of a cell's ATP. E) contain the genetic information of a cell.
Granulation occurs in the primary repair of wounds.?
Indicate whether the statement is true or false
Up-regulation
A. is found in target cells that maintain a constant level of receptors. B. moves the receptors up on the membrane. C. produces an increase in the sensitivity of the target cell to the hormone. D. produces insensitivity to the hormone in the target tissue. E. results in a decrease in the number of receptor sites in the target cell.
Place the following events in synaptic transmission at a cholinergic synapse in order: A - A postsynaptic potential is produced; B - Voltage gated calcium channels open and calcium enters the cell; C - ACh is released and diffuses across the axon terminal; D - A nerve signal arrives at an axon terminal; E - Ligand gated sodium channels open and sodium enters the cell.
A. D, B, E, A, C B. B, C, D, E, A C. D, B, C, E, A D. B, D, C, A, E