Cell Cycle

Cell Cycle

Hedrick 2021

The Cell Cycle

• This the life cycle that ALL cells generally go through.

• The cell cycle is made of the G₀, G₁, S, G₂, and M phases.

Poll

What do you think the G in the G phases mean?

• Gaining

• Growth

• Gestation

• Gap

G₀ Phase

This is "resting" phase of the cell cycle. Cells just kinda "hang out" in this phase and don't do any cell division type things.

G₁ Phase (Growth Phase)

This is where the cell does most of its growth. This is also where most of the proteins are made (think transcription and translation going crazy).

S (Synthesis) Phase

All of the chromosomes are duplicated (copied) in preparation for cell division.

G₂ Phase

The cell checks the copied DNA, checks for any other issues, and grows again.

M (Mitotic) Phase

This is where the cell actually does its division processes.

Multiple Choice

In which phase of the cell cycle does the DNA copy itself?

• G₀

• G₁

• S

• G₂

• M

Multiple Choice

In which phase of the cell cycle does the cell just "hang out"?

• G₀

• G₁

• M

• G₂

• S

Multiple Choice

In which phase of the cell cycle does the cell grow and synthesize most of its proteins?

• G₀

• G₁

• S

• G₂

• M

Multiple Choice

In which phase of the cell cycle does the cell divide?

• G₀

• G₁

• S

• G₂

• M

Multiple Choice

In which phase of the cell cycle does the cell do its final prep and checks for cell division?

• G₀

• G₁

• S

• G₂

• M