Cell Division & Cell Cycle Study Guide :: essays research papers

CELL DIVISIONCell instalment involves 2 phases1- MITOSIS The process by which nuclear material is divided 2 identical daughter jail cubicles event2- CYTOKINESIS the process by which the cytol and its contents (organelles) separate into equal parts. cytokinesis begins forward mitosis is complete cytokinesis differs in plant and animal boothsANIMAL CELLS the cell tissue layer pinches near the middle of the cell, dividing the cytoplasm into equal parts(2 new cells)PLANT CELLS a cell plate develops across the centre of the cell, creating a new cell environ between the 2 new cells Cells alternate between stages (phases) of dividing and non dividing.This sequence is called the cell cycle. The 2 major phases of the CELL CYCLE ar1- DIVISION PHASE During this phase the cell undergoes mitosis (nuclear division) There are 4 phases of mitosisProphaseMetaphaseAnaphaseTelophase2- INTERPHASE During this phase, the cell takes in nutrients and builds proteins that are used by the cell fo r power Chromosomes duplicate (DNA replication) This is the period of growth and repair for the cell (in preparation for the division phase)THE CELL CYCLECELL CYCLE the continuous process of mitosis, cell division, and interphase.HOW CELL GETS READY FOR MITOSIS Nucleus makes a copy of its chromatin(replication) Chromatin coils into repeat stranded chromosomes joined in the middle by a centromere 2 sets of DNA are bundled together nucleus is ready for mitosis to begin. wight cell division cell membrane pinches near the middle of the cell, dividing the cytoplasm into 2 new cellsPlant cell division a cell plate develops across the centre of the cell, forming a new cell wall between the 2 cellsOriginal cell, parent cell rude(a) cells, daughter cells of chromosomes in the nucleus of each cell is identical to eachother and to the reduce in the original cellWhy must nuclear membrane break down in mitosis?So that the contents of the cell bottom divide.The NUCLEUS controls the process o f mitosis. REGENERATION repair of injured cells or the reservation of lost body partsNormal Cell Replacement cells grumble when they receive instruction to do so when they are no hourlong needed