Question

the state implies the exit of cell from cell cycle​

Answer 1

Quiescent (G₀) stage implies the exit of cell from cell cycle.

The quiescent stage is also known as the G₀ stage.

The cells exiting from the cell cycle enter the G₀ stage after exiting the G₁ phase. The further division is stopped upon entering the inactive G₀ stage.

Cells in the quiescent stage are metabolically active but they do not proliferate except when required.  

For example, heart cells only divide occasionally to replace the cells.

Answer 2

The G 0 phase is a period of cell quiescence during which cells stop dividing after the G 1 phase and begin to differentiate into a specific kind of cell. Outside of the replicative cell cycle, the G0 phase represents a cellular state.

Previously, it was considered that cells entered G0 as a result of environmental conditions such as food deprivation, which reduced the resources required for proliferation. As a result, it was seen as a period of rest. To function as reserve cells, cells do not proliferate or differentiate, but they remain metabolically active.

They can re-enter the cell cycle at any time if a suitable trigger is provided.Exit from mitosis refers to everything that happens during the telophase and the cytokinesis that follows. The cell enters the G1 phase after the mitotic phase.