Cell Division

What is the significance of checkpoints in the cell cycle?

• They allow cells to divide uncontrollably.

• They ensure that the cell is ready to proceed to the next phase, preventing errors.

• They are responsible for DNA replication.

• They help in the formation of new cells.

What is the function of growth factors?

• Proteins that stimulate cell division and growth.

• Hormones that regulate metabolism.

• Enzymes that break down cellular waste.

• Lipids that provide energy to cells.

What occurs during interphase?

• Cell division and cytokinesis.

• Cell growth, DNA replication, and preparation for mitosis.

• Chromosome segregation and separation.

• Apoptosis and necrosis.

What are the main phases of the cell cycle?

• Interphase, Mitosis (Prophase, Metaphase, Anaphase, Telophase), and Cytokinesis.

• G1 phase, S phase, G2 phase, and M phase.

• Interphase, Meiosis, and Cytokinesis.

• Prophase, Metaphase, Anaphase, and Telophase.

What is cancer?

• A disorder in which some of the body's cells lose the ability to control growth.

• A type of infection caused by bacteria.

• A genetic condition that affects the skin.

• A mental health disorder characterized by anxiety.

What is apoptosis?

• The process of programmed cell death.

• A type of cellular division.

• A mechanism for DNA repair.

• A form of cellular aging.

What happens during prophase?

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

• The DNA is replicated, and the cell prepares for division.

• The chromosomes align at the cell's equator, and spindle fibers attach to them.

• The nuclear envelope reforms around the separated chromosomes.

What is DNA replication?

• The process of copying DNA prior to cell division.

• The process of breaking down DNA into smaller fragments.

• The process of synthesizing proteins from RNA.

• The process of repairing damaged DNA strands.

What is cytokinesis?

• The process of DNA replication before cell division.

• The final stage of cell division where the cytoplasm divides, resulting in two daughter cells.

• The phase of the cell cycle where the cell grows and prepares for division.

• The mechanism by which cells communicate with each other.

What is a tumor?

• A type of cell that helps in digestion.

• An abnormal mass of tissue that can be benign (non-cancerous) or malignant (cancerous).

• A virus that causes cancer.

• A genetic mutation that occurs in healthy cells.