CELLULAR DIVISION (CELL CYCLE)

What is the term used for the phase where cells actually divide to make more cells?

• Mitosis

• G1 Phase

• Interphase

• G2 Phase

Which protein is specifically an enzyme protein involved in positive regulation of the cell cycle?

• Cdk

• Apoptosis

• Cyclin

• p53

What role do cyclin and Cdk proteins play in cell cycle regulation?

• Cyclin binds to Cdk to form a kinase that activates cycle progression.

• Cyclin levels rise and fall throughout the cell cycle, determining when Cdk is activated.

• Cdk is an enzyme that phosphorylates other proteins to regulate the cell cycle.

• All of the above.

What is the term used for the process where a cell self destructs if it is damaged beyond repair?

• Apoptosis

• Mitosis

• Interphase

• Cytokinesis

Which phase of the cell cycle checks if the DNA was replicated correctly?

• G2 Phase

• S Phase

• G1 Phase

• M Phase

What is the main reason for cells to hit the M phase (Mitosis) in the cell cycle?

• To grow in size

• To replicate DNA

• To perform cell functions

• To divide and make more cells

Which type of cells may stay permanently in the G0 phase and never get to M phase?

• Stomach cells

• Neurons

• Muscle cells

• Skin cells

What is the main reason for the cell cycle checkpoints to exist?

• To regulate the cell cycle

• To check for harmful mutations

• To ensure cell division

• To prevent cell growth

Which phase of the cell cycle involves the actual splitting of the cytoplasm?

• G2 Phase

• S Phase

• M Phase

• G1 Phase

What is the term used for the phase where the cell individually itself grows?

• G2 Phase

• S Phase

• M Phase

• G1 Phase