Signal Transduction & Cell Communication

Front

What is signal transduction?

Back

The process by which a cell converts an external signal into a functional response, involving reception, transduction, and response.

Front

What is the correct order of communication in signal transduction?

Back

Reception, transduction, response.

Front

What role do cell surface receptors play in cell communication?

Back

They bind to signaling molecules (ligands) and initiate the signal transduction process.

Front

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

Back

Endocrine signaling.

Front

What is autocrine signaling?

Back

A type of 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 type of signaling where a cell releases signals that affect nearby target cells.

Front

What is apoptosis?

Back

Programmed cell death, a process that allows cells to self-destruct when they are no longer needed.

Front

What type of feedback system is temperature regulation?

Back

Negative feedback system.

Front

What is the function of second messengers in signal transduction?

Back

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

Front

What is a ligand?

Back

A molecule that binds to a receptor to initiate a signal transduction pathway.