AP® Biology: Neuron Structure and Function

What is the usual direction of information flow along a neuron?

What is the membrane of an axon called when it is at rest?

What type of gradient exists across the membrane of a resting axon?

What ions are used by neurons to establish a gradient?

What powers the Na+/K+ pump that maintains the resting membrane potential?

What causes the membrane potential to change in response to a stimulus?

What occurs in depolarization?

What is the phenomenon called when action potentials 'jump' between gaps of unmyelinated axons?

What occurs during repolarization?

What is the junction called across which transmission of a nerve impulse from one neuron to another occurs?

What are the chemical messengers released into the junction at the synapse?

What type of neurotransmitters may decrease the chance of an action potential in the postsynaptic neuron?

What occurs when neurotransmitters bind to receptors embedded in the membrane of the postsynaptic neuron?

What do many drugs, including tetrahydrocannabinol (THC) in marijuana, induce changes in?

What is the neurotransmitter important to short-term memory that THC in marijuana binds to?

Which Big Idea of the AP® Biology Curriculum Framework do the concepts outlined in the section support?