Cell Cycle and Cancer

What is the role of checkpoints in the cell cycle?

• To ensure that the cell is ready to proceed to the next phase and to prevent errors.

• To speed up the cell division process.

• To increase the number of cells in the body.

• To eliminate damaged cells without any checks.

Which of the following is not a factor that can cause a mutation?

• Viruses

• Radiation

• Chemical exposure

• Genetic recombination

What is the role of proteins in the cell cycle?

• They provide structural support to the cell.

• They act as regulators that control the progression of the cell cycle.

• They store genetic information for cell division.

• They facilitate energy production within the cell.

What is interphase?

• The phase of the cell cycle where the cell spends most of its time preparing for division.

• The stage of cell division where chromosomes are separated.

• The phase where the cell undergoes apoptosis.

• The period of time when the cell is inactive and not dividing.

Where do you find checkpoints in the cell cycle?

• At the beginning of each phase

• After each phase

• Only during DNA replication

• At the end of the cell cycle

What is the cell cycle?

• A process of photosynthesis in plants.

• The series of events that take place in a cell leading to its division and replication.

• A method of cellular respiration.

• The stages of protein synthesis in cells.

What is the function of the G2 phase?

• DNA replication

• Cell division

• Normal cell functions

• Cellular respiration

What happens during the S phase of the cell cycle?

• DNA replication occurs, resulting in two identical sets of chromosomes.

• Cell growth and preparation for mitosis take place.

• Chromosomes condense and become visible under a microscope.

• The cell undergoes cytokinesis to divide into two daughter cells.

What regulates the cell cycle?

• Proteins

• Carbohydrates

• Lipids

• Nucleic Acids

What is the significance of apoptosis in multicellular organisms?

• It helps maintain homeostasis by removing damaged or unnecessary cells.

• It promotes cell division and growth.

• It increases the lifespan of cells.

• It is a process that leads to cell mutation.