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 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
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
On passing through the ___________ angiotensin I is converted to angiotensin II
Fill in the blank(s) with correct word
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