Signal Transduction & Cell Communication

Front

What is the correct order of communication in signal transduction?

Back

Reception, Transduction, Response

Front

What is direct signaling in plants primarily facilitated by?

Back

Gap junctions

Front

What type of signaling occurs when a virus-infected cell signals apoptosis in nearby cells?

Back

Autocrine signaling

Front

What type of signaling occurs between two neurons?

Back

Paracrine signaling

Front

What happens during the transduction stage of a signal transduction pathway?

Back

The G protein activates adenyl cyclase, which activates cAMP, which activates protein kinases.

Front

Define signal transduction.

Back

The process by which a cell responds to external signals through a series of molecular events.

Front

What role do G-protein coupled receptors play in signal transduction?

Back

They detect molecules outside the cell and activate internal signal transduction pathways.

Front

What is apoptosis?

Back

A process of programmed cell death that occurs in multicellular organisms.

Front

What is the function of ligands in cell signaling?

Back

Ligands are molecules that bind to receptors to initiate a signaling cascade.

Front

What is paracrine signaling?

Back

A form of cell signaling where the target cell is close to the signal-releasing cell.