AP Biology: Unit 4 Review (CED)

Front

What occurs when the ligand binds to the receptor?

Back

Confirmation change in shape of receptor.

Front

What is the impact of a mutation in any domain of the protein components of the transduction signaling pathway?

Back

Alters response of the cell.

Front

Which of the following is NOT involved with transduction?

Back

Ligands.

Front

Which checkpoint is responsible for ensuring nondisjunction does not take place?

Back

M checkpoint.

Front

Which of the following is NOT a stage of the cell cycle?

Back

Apoptosis.

Front

Define ligand in the context of cell signaling.

Back

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

Front

What is signal transduction?

Back

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

Front

What role do secondary messengers play in signal transduction?

Back

They amplify the signal within the cell after the receptor is activated.

Front

What is the function of the G1 checkpoint?

Back

To assess cell size, DNA integrity, and nutrient availability before DNA replication.

Front

What happens during the M checkpoint?

Back

It ensures that all chromosomes are properly attached to the spindle before cell division.