4.7 Cell Cycle Regulation/ Cancer

Front

What is the main characteristic of all cancers?

Back

Uncontrolled cell growth.

Front

In which stage of the cell cycle are cells most susceptible to mutations?

Back

S phase.

Front

What type of gene is p53?

Back

Tumor Suppressor Gene.

Front

What is the role of protein kinases in the cell cycle?

Back

Add phosphate groups and energy to activate enzymes.

Front

What is apoptosis?

Back

Programmed cell death that maintains the health of a multicellular organism.

Front

What is the function of cyclins in the cell cycle?

Back

Regulate the timing of the cell cycle by activating cyclin-dependent kinases.

Front

What happens when there is a mutation in a proto-oncogene?

Back

It can become an oncogene, leading to uncontrolled cell division.

Front

What is the significance of the G1 phase in the cell cycle?

Back

It is the phase where the cell grows and prepares for DNA replication.

Front

How does DNA damage affect the cell cycle?

Back

It can trigger checkpoints that halt the cycle until repairs are made.

Front

What is the role of tumor suppressor genes?

Back

They help prevent uncontrolled cell growth by regulating the cell cycle.