The Cell Cycle

Front

What are the main stages of the cell cycle?

Back

The main stages of the cell cycle are Interphase (G1, S, G2) and M phase (Mitosis and Cytokinesis).

Front

What occurs during the G1 phase of the cell cycle?

Back

During the G1 phase, the cell grows, synthesizes proteins, and prepares for DNA replication.

Front

What is the significance of the S phase in the cell cycle?

Back

The S phase is where DNA replication occurs, resulting in two identical sets of chromosomes.

Front

What happens during the G2 phase of the cell cycle?

Back

During the G2 phase, the cell continues to grow and prepares for mitosis by producing necessary proteins and organelles.

Front

What is mitosis?

Back

Mitosis is the process of nuclear division that results in two daughter nuclei, each with the same number of chromosomes as the parent nucleus.

Front

What is cytokinesis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two separate daughter cells.

Front

What is a checkpoint in the cell cycle?

Back

A checkpoint is a control mechanism that ensures the proper progression of the cell cycle, checking for DNA damage and ensuring conditions are favorable for division.

Front

What can happen if a cell fails to pass a checkpoint?

Back

If a cell fails to pass a checkpoint, it may undergo apoptosis (programmed cell death) or enter a resting state (G0 phase).

Front

What is cancer in relation to the cell cycle?

Back

Cancer is characterized by uncontrolled cell growth and division, often due to mutations that affect cell cycle regulation.

Front

What role do mitochondria play in cellular respiration?

Back

Mitochondria are the organelles where the reactions of cellular respiration occur, producing ATP, the energy currency of the cell.