AP Bio Insta-Review Topic 4.1: Cell Communication

Front

What is autocrine signaling?

Back

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

Front

What is paracrine signaling?

Back

A type of cell signaling where a cell releases a signal that affects nearby cells.

Front

Where are steroid hormone receptors located?

Back

Intracellular, meaning they are found inside the cell.

Front

What organelle is primarily responsible for producing endocrine signals?

Back

Rough Endoplasmic Reticulum (Rough ER), which synthesizes proteins that can act as hormones.

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 is synaptic signaling?

Back

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

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 the function of membrane-bound receptors?

Back

Membrane-bound receptors are proteins located on the cell surface that bind to signaling molecules (ligands) and initiate a cellular response.

Front

What is the significance of signal transduction pathways?

Back

Signal transduction pathways are processes by which a cell responds to external signals, leading to a specific cellular response.

Front

What is endocrine signaling?

Back

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