Cell Cycle Review

What is cancer in relation to the cell cycle?

• A disease characterized by uncontrolled cell division, often due to failures in the checkpoints of the cell cycle.

• A condition where cells divide at a normal rate and function properly.

• A genetic disorder that only affects certain types of cells.

• A temporary state of increased cell division that resolves on its own.

What is cytokinesis?

• Cytokinesis is the process that follows mitosis, where the cytoplasm of a parental cell is divided into two daughter cells.

• Cytokinesis is the phase of cell division where the nucleus divides into two nuclei.

• Cytokinesis is the process of DNA replication before cell division.

• Cytokinesis is the stage of cell division where chromosomes align at the cell's equator.

What is programmed cell death?

• A process where cells undergo an orderly death for the benefit of the organism (apoptosis)

• A method of cell division

• A type of cell repair mechanism

• A form of cellular aging

What is the S phase?

• The S phase is the part of Interphase where DNA replication occurs, resulting in two copies of each chromosome.

• The S phase is the stage of cell division where the cell splits into two daughter cells.

• The S phase is the phase of the cell cycle where the cell prepares for mitosis.

• The S phase is the part of Interphase where the cell grows and produces proteins.

What is the G1 checkpoint?

• A control mechanism that checks for DNA damage before cell division.

• A control mechanism in the cell cycle that checks for cell size, duplication of organelles, and growth signals before the cell enters the S phase.

• A phase in the cell cycle where the cell prepares for mitosis.

• A checkpoint that ensures the cell has enough nutrients to proceed to the next phase.

Which phase of the cell cycle does the cell spend the most time in?

• Interphase

• Prophase

• Metaphase

• Anaphase

What is the difference between mitosis and cytokinesis?

• Mitosis is the division of the cytoplasm, while cytokinesis is the division of the nucleus.

• Mitosis occurs only in plant cells, while cytokinesis occurs in animal cells.

• Mitosis is the division of the nucleus, while cytokinesis is the division of the cytoplasm, resulting in two separate cells.

• Mitosis and cytokinesis are the same process that occurs simultaneously.

What is the purpose of the G2 checkpoint?

• To ensure that DNA has been replicated correctly and that the cell is ready to enter mitosis.

• To check for DNA damage before replication begins.

• To regulate the cell cycle by promoting apoptosis if errors are found.

• To facilitate the separation of sister chromatids during anaphase.

What is the role of the spindle checkpoint?

• To ensure that all chromosomes are properly attached to the spindle apparatus before the cell proceeds with mitosis.

• To initiate the process of DNA replication during the S phase.

• To regulate the timing of cytokinesis after mitosis is complete.

• To facilitate the separation of sister chromatids during anaphase.

What occurs during Mitosis?

• The cell's DNA is replicated for the first time.

• The cell's duplicated chromosomes are separated into two new nuclei, leading to cell division.

• The cell undergoes apoptosis, or programmed cell death.

• The cell's organelles are duplicated and distributed to daughter cells.