AP Bio: Unit 4-Cell Communication Neuron Review

Front

What is the charge of a neuron at REST?

Back

The inside of the neuron is negatively charged compared to the outside.

Front

What is the role of transduction in cell signaling?

Back

Transduction amplifies the signal received by the cell.

Front

What is the gap between two neurons called?

Back

Synapse.

Front

What is the function of the axon in a neuron?

Back

The axon transmits electrical impulses away from the neuron's cell body.

Front

What happens if a receptor is unable to bind to its ligand?

Back

It alters the response of the cell.

Front

What are secondary messengers in cell signaling?

Back

Molecules that relay signals received at receptors on the cell surface to target molecules inside the cell.

Front

What is a phosphorylation cascade?

Back

A series of chemical reactions during cell signaling where one enzyme activates another by adding a phosphate group.

Front

What is the role of ligands in cell signaling?

Back

Ligands are molecules that bind to receptors to initiate a cellular response.

Front

What is the myelin sheath?

Back

A fatty layer that insulates axons and increases the speed of electrical impulses.

Front

What are terminal branches in a neuron?

Back

The ends of the axon that release neurotransmitters to communicate with other neurons.