Mitosis - Cell Division Practice

Front

What is the purpose of mitosis?

Back

To allow cells to divide for growth, repair, and renewal.

Front

What is a carcinogen?

Back

Any substance that is known to cause cancer.

Front

What phase of mitosis is characterized by the separation of sister chromatids?

Back

Anaphase.

Front

In which phase of mitosis do chromatids align in the center of the cell?

Back

Metaphase.

Front

True or false: Cancer begins when mutations disrupt the normal cell cycle, bypassing the checkpoints, causing cells to divide in an uncontrolled way.

Back

True.

Front

What are the main stages of the cell cycle?

Back

Interphase (G1, S, G2) and Mitosis (Prophase, Metaphase, Anaphase, Telophase).

Front

What happens during prophase?

Back

Chromatin condenses into chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form.

Front

What is the role of spindle fibers during mitosis?

Back

To help separate the chromosomes and pull them to opposite poles of the cell.

Front

What is the significance of checkpoints in the cell cycle?

Back

Checkpoints ensure that the cell is ready to proceed to the next phase, preventing errors in cell division.

Front

What is the difference between benign and malignant tumors?

Back

Benign tumors do not invade surrounding tissues or spread, while malignant tumors can invade and spread to other parts of the body.