AP Biology: Cell Communication

Front

A cell converting a chemical signal into a cellular response is known as __.

Back

Transduction

Front

What type of transmembrane receptor allows ions to flow in and out of the cell when opened?

Back

Gated ion channel

Front

What is an example of DISTANCE cell communication?

Back

Hormones traveling through the blood stream to target tissues

Front

After a ligand binds, the intracellular domain of a receptor protein changes _____, initiating transduction of the signal.

Back

Shape

Front

Which of the following is NOT a response by the cell from a signal transduction pathway?

Back

All of the above are responses

Front

What is the role of a ligand in cell communication?

Back

A ligand is a molecule that binds to a receptor to initiate a cellular response.

Front

Define signal transduction pathway.

Back

A series of molecular events and reactions that lead to a cellular response after a signal is received.

Front

What is the function of G-protein coupled receptors?

Back

They transmit signals from outside the cell to the inside by activating G-proteins.

Front

What is the difference between local and long-distance signaling?

Back

Local signaling occurs over short distances, while long-distance signaling involves hormones traveling through the bloodstream.

Front

What is the significance of receptor shape in cell signaling?

Back

The shape of a receptor determines its ability to bind to specific ligands and initiate a response.