AP Biology Unit 4 review

Front

What are the three parts of a signal transduction pathway?

Back

Reception, Transduction, Response

Front

What is 'D' labeling in the context of proteins?

Back

Alpha subunit

Front

What is the function of a protein kinase?

Back

Transfers phosphates from ATP to proteins.

Front

Which of the following is NOT involved in the transduction step of signal transduction?

Back

Ligands

Front

What does cAMP bind to in order to phosphorylate the catalytic portion?

Back

Protein kinase.

Front

Define signal transduction.

Back

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

Front

What role do secondary messengers play in signal transduction?

Back

They amplify the signal within the cell.

Front

What is phosphorylation cascade?

Back

A series of events where one protein kinase activates another, leading to a cellular response.

Front

What is the role of ligands in signal transduction?

Back

They bind to receptors to initiate the signal transduction pathway.

Front

What is the significance of receptor proteins in signal transduction?

Back

They detect signals and initiate the transduction process.