AP Bio Insta-Review Topic 4.2: Intro to Signal Transduction

Front

What is a signaling molecule called?

Back

Ligand

Front

True or False: The ligand travels through the signal transduction path.

Back

False

Front

True or False: Different cells respond to the signal in the same way.

Back

False

Front

How is calcium released from the smooth ER?

Back

Gated ion channel

Front

True or False: All cells respond to the same ligand with the same response.

Back

False

Front

What is signal transduction?

Back

The process by which a cell responds to signals from its environment.

Front

What role do receptors play in signal transduction?

Back

Receptors bind to signaling molecules (ligands) and initiate a cellular response.

Front

What is the function of a second messenger in signal transduction?

Back

Second messengers amplify the signal and help relay it within the cell.

Front

Name a common second messenger involved in signal transduction.

Back

Cyclic AMP (cAMP) or Calcium ions (Ca²+).

Front

What is the difference between a ligand and a receptor?

Back

A ligand is a signaling molecule, while a receptor is a protein that binds to the ligand.