AP Biology Cell Cycle mitosis meiosis and cell communication

Front

What is the cell cycle?

Back

The cell cycle is the series of phases that a cell goes through to divide and replicate. It includes interphase (G1, S, G2) and the mitotic phase (mitosis and cytokinesis).

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA is replicated, resulting in two identical sets of chromosomes for each daughter cell.

Front

What are the main stages of mitosis?

Back

The main stages of mitosis are prophase, metaphase, anaphase, and telophase.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis produces four genetically diverse gametes.

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins are proteins that regulate the progression of the cell cycle by activating cyclin-dependent kinases (CDKs).

Front

What is apoptosis?

Back

Apoptosis is programmed cell death, a process that eliminates damaged or unnecessary cells.

Front

What is a signal transduction pathway?

Back

A signal transduction pathway is a series of molecular events and interactions that lead to a cellular response following the binding of a signaling molecule to a receptor.

Front

What are the three main parts of a signal transduction pathway?

Back

The three main parts are reception, transduction, and response.

Front

What is the function of a secondary messenger in cell signaling?

Back

Secondary messengers amplify the signal from a receptor and help propagate the signal within the cell.

Front

What happens during anaphase of mitosis?

Back

During anaphase, sister chromatids are pulled apart to opposite poles of the cell.