Exam 4: Extension: B - the Structure and Electrical Activity of Neurons

Use the following to answer questions: Match the substance with the MOST appropriate characteristic in the list below. -DNA ___

Describe the phenomena of temporal and spatial summation of postsynaptic potentials. Answer Key

Match each ion with the MOST appropriate characteristic. -A- ___

Describe the interaction between concentration and voltage gradients in the establishment of the membrane potential.

Match each ion with the MOST appropriate characteristic. -Na⁺ ___

You are working with a squid giant axon with a resting potential of -70 mV. What would the voltage change look like if (a) the axon is bathed in tetrodotoxin and (b) the axon is bathed in TEA? In both cases supra - threshold current is applied to the axon, enough to cause an action potential in a sea water-only bath.

Distinguish between transcription and translation in protein synthesis.

Use the following to answer questions: Subcellular constituents have specific jobs to perform. For each question, choose the MOST appropriate alternative function from the list below. -microtubules ___

Use the following to answer questions: Match the part of the neuron with the MOST appropriate function from the list below. -axon hillock ___

Match each ion with the MOST appropriate characteristic. -NA⁺-K⁺ pump ___

Draw a diagram of an action potential, labeling each phase. Include the resting membrane potential, the threshold potential, and hyperpolarization.