5.2 Regulating Cell Division

What is the cell cycle?

• The process of cell growth and regulation

• The process of cell communication

• The process of cell death

Tags

NGSS.HS-LS1-4

What is the purpose of the cell cycle?

• To eliminate cancer cells

• To regulate cell functions

• All of the other answers are correct

• To replicate DNA, proteins and organelles

Tags

NGSS.HS-LS1-4

What is the mitotic phase of the cell cycle where cells divide?

• Interphase

• G1 phase

• M phase

• S phase

Tags

NGSS.HS-LS1-4

What are the 2 things that can happen if a cell doesn't meet the requirements of a checkpoint?

• It tries to repair the issue

• if too damaged it may self destruct through apoptosis

• It enters a resting phase

• It starts the cycle over

The _______ protein changes in each phase and binds to the Cdk protein molecule and is involved in positive regulation of the cell cycle?

• p53

• dynein

• cyclin

• kinesin

What is the purpose of apoptosis?

• To self destruct damaged cells

• To regulate cell growth

• To repair damaged cells

• To initiate cell division

What is G₀ phase?

• A phase where cells divide frequently

• A phase where cells rest

• A phase where cells repair DNA

• A phase where cells self destruct

Which cells may stay in G₀ phase permanently?

• Skin cells

• Stomach cells

• Muscle cells

• Neurons in the brain and spinal cord

What can be a risk factor for cells to become cancerous?

• All of the answers are correct

• Excessive exposure to UV light

• Exposure to toxins

• Genetic factors

• Radiation

Tags

NGSS.HS-LS3-2

What is one problem that cancer cells may have?

• Inability to communicate with healthy cells

• Inability to carry out normal cell functions

• Inability to securely anchor themselves

• All of the answers are correct

Tags

NGSS.HS-LS1-4