1. What must be true of the concentration of potassium and sodium inside the neuron?
2. Why can some ions move across membranes but others cannot?
3. How would permeability change if types of channels in a neuron change?
4. What is the purpose of having leak and gated channels for the neuron?
5. What are the charges both inside and outside of the neuron before you click
the stimulate neuron button?
6. What are the charges both inside and outside of the neuron after the
simulation is complete?
7. What happens to the charge during the stimulation?
8. What happens after the gated channels close?
9. How many potassium ions move into the cell while how many sodium ions
move out of the cell?
10. What does the yellow line represent that runs along the neuron?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism