Cell Cycle And Importance Of Cell Division Flashcards
Why do cells divide
They divide for 3 reasons,1. Reproduction 2. Growth 3. Repair injuries by replacing old cells in an organism
Diffusion
Particles move from an area of high concentration to low concentration
3 stages through which a cell passes as it grows and divides
Stage 1. Interphase
stage 2 mitosis
stage 3. Cytokinesis
Interphase
Performs all life functions of cell
Grows in size and organelles are doubled
DNA is copied
Mitosis
The division or separation of DNA and organelles to opposite sides of cell
Cytokineses
The cell cytoplasm and organelles are physically separated are then formed into 2 identical cells by either
Cell membrane pinching off to form 2 new cells (animal cells)
A cell plate forming in the middle and develops into a cell wall (plant cells)
A cell will remain in interphase when…
Not enough nutrients for growth
DNA has not been replicated
DNA is damaged
Surrounding cells signals indicate to not divide