Cell Cycle

What happens if the cell cycle is not properly regulated?

• It leads to controlled cell division.

• It can result in uncontrolled cell division, which may lead to cancer.

• It has no significant effect on the cell.

• It causes the cell to stop dividing altogether.

What is the role of cyclins in the cell cycle?

• Cyclins are proteins that regulate the cell cycle by activating cyclin-dependent kinases (CDKs), which drive the cell through the different phases.

• Cyclins are enzymes that break down cellular waste during the cell cycle.

• Cyclins are lipids that provide energy for cell division.

• Cyclins are carbohydrates that help in the formation of the cell membrane.

What is the purpose of the cell cycle?

• To enable growth, development, and repair of tissues by producing new cells.

• To facilitate the breakdown of cellular waste products.

• To regulate the temperature of the cell environment.

• To enhance the speed of cellular respiration.

What is the mitotic phase?

• The phase where the cell prepares for DNA replication.

• The part of the cell cycle where the cell divides, including mitosis and cytokinesis.

• The stage of the cell cycle where the cell grows and performs its functions.

• The phase where the cell undergoes apoptosis.

What is the significance of the cell cycle checkpoints?

• They allow the cell to divide uncontrollably.

• They ensure the proper division of the cell by preventing progression until conditions are met.

• They are responsible for the synthesis of DNA during the S phase.

• They help in the repair of damaged DNA only.

What occurs during the G1 phase of interphase?

• The cell divides into two daughter cells.

• The cell grows and synthesizes proteins necessary for DNA replication.

• The cell undergoes DNA replication.

• The cell enters a resting state before division.

What happens during the S phase of interphase?

• The cell undergoes mitosis and divides into two daughter cells.

• The cell replicates its DNA, resulting in the duplication of chromosomes.

• The cell prepares for cell division by increasing its size.

• The cell enters a resting phase and does not perform any functions.

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 daughter cells.

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

What is cytokinesis?

• The process of DNA replication during cell division.

• The division of the cytoplasm of a parental cell into two daughter cells.

• The formation of the nuclear envelope during mitosis.

• The synthesis of proteins in the ribosomes.

What occurs during the G2 phase of interphase?

• The cell undergoes DNA replication.

• The cell continues to grow and prepares for mitosis by producing the necessary proteins and organelles.

• The cell divides into two daughter cells.

• The cell enters a resting state before mitosis.