Monthly Archives: December 2013

6.5b Synapses

dbq pg. 257

1a. L-dopa increases dopamine
1b. selegeline  still allows the dopamine to last since it inhibits breakdown of dopamine
1c. tolcapone allows dopamine to be produced
1d. ropinirole allows dopamine to be produced
1e. safinamide allows more dopamine to be available
2a. stem cells are able to replace cells that are not actively functioning in a certain area of an organism
2b.

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6.5a Neurons

dbq pg. 255

1a. the reduced NA+ concentration reduces the magnitude of depolarization
1b. the reduced NA+ concentration increases the duration of the action potential
2. the reduced NA+ concentration causes the magnitude of depolarization to lower because the concentration gradient decreases
3. the time taken to get to the resting potential is long because of the reduced NA+ concentration
4. the magnitude of depolarization the shaker mutant is lower than the drosophilias’ magnitude
5. the difference in the action potential is the because of the stimulus

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