Explain the direct and indirect contributions of the Na+-K+ pump to the generation of the resting membrane potential
What will be an ideal response?
The Na+-K+ pump transports three Na+ out of the cell for every two K+ it moves into the cell. This results in an unequal distribution of positive charges across the membrane with inside being more negative compared to the outside. The potential difference generated this way is small relative to the overall membrane potential. The majority of the membrane potential results from the passive movements of Na+ and K+ down their concentration gradients. These gradients are established and maintained by the Na+-K+ pump.
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What type of molecule is shown in the diagram? Where in a eukaryotic cell would this type of molecule be commonly found? What special chemical properties does this molecule possess that allows it to accomplish its functions?
What will be an ideal response?
Muscle cells contain numerous ________ to serve their high demand for ATP
A) inclusions B) Golgi vesicles C) mitochondria D) lysosomes E) ribosomes
How is salt balance tied into blood pressure control?
What will be an ideal response?
Branches of the ________ nerve are anesthetized before a doctor performs an episiotomy for childbirth.
A. genitofemoral B. common fibular (peroneal) C. gluteal D. cutaneous femoral E. pudendal