AP Bio Insta-Review Topic 4.1*: Cell Communication

Front

What is autocrine signaling?

Back

A type of cell signaling where a cell secretes a signal that binds to receptors on its own surface, affecting its own activity.

Front

What is paracrine signaling?

Back

A form of cell signaling where a cell produces a signal to induce changes in nearby cells.

Front

What is endocrine signaling?

Back

A type of signaling where hormones are released into the bloodstream by endocrine cells to affect distant target cells.

Front

Which organelle is primarily responsible for synthesizing proteins for secretion in endocrine signaling?

Back

Rough Endoplasmic Reticulum (Rough ER).

Front

What is the role of the Golgi apparatus in cell signaling?

Back

The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Front

What is synaptic signaling?

Back

A specialized form of signaling that occurs in the nervous system where neurotransmitters are released from a neuron to communicate with a nearby neuron or muscle cell.

Front

What is the difference between autocrine and paracrine signaling?

Back

Autocrine signaling affects the same cell that releases the signal, while paracrine signaling affects nearby cells.

Front

What type of signaling involves the release of hormones into the bloodstream?

Back

Endocrine signaling.

Front

In autocrine signaling, which cell releases the signal?

Back

The same cell that is affected by the signal.

Front

What is a ligand in the context of cell signaling?

Back

A molecule that binds to a specific receptor to initiate a signaling cascade.