Slight deviations from the normal concentration of ________ can shut down metabolic pathways as well as alter the structure and function of other macromolecules.
A. glucose
B. H+
C. K+
D. Na+
E. phosphate
Answer: B
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A common example of positive feedback is the control of room temperature via a thermostat
a. True b. False Indicate whether the statement is true or false
Myelination increases AP conduction velocity by:
A. increasing the axonal diameter B. increasing membrane capacitance C. limiting voltage-gated K+ channels to the nodes D. increasing the velocity of current flow in the axon E. increasing the length constant and decreasing the membrane capacitance between the nodes
On passing through the ___________ angiotensin I is converted to angiotensin II
Fill in the blank(s) with correct word
A transplant recipient's body rejects a transplanted organ because her ______ does not
match that of the donor closely enough. A) cytokine profile B) mononuclear phagocytic system C) antibody response D) major histocompatibility complex