Cell Reproduction.

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Presentation transcript:

Cell Reproduction

Cell Reproduction – Cell Cycle 4.2 Cell reproduction in _________cells is more complex than cell reproduction in __________ cells. 2. The life cycle of a cell or ________ is _______________________________________________________. Eukaryotic Prokaryotic Cell cycle The sequence of events in the growth and division of a eukaryotic cell

Cell Cycle 3. The cell cycle has ____ main phases: 2 Interphase M-Phase 2

A. Interphase A. Interphase - the period between two divisions of a eukaryotic cell during which the cell _________ and prepares for _______________. G1 – This is the ____________________. Cells mature & increase in size by making more cytoplasm & organelles while carrying normal metabolic activities. S – This is the _____________________. The genetic material of the cell (DNA) is copied/replicated. G2 – This is the _____________________. Cell continues to grow, and makes all the structures (i.e. organelles) needed for cell division. Grows Cell Division 1st Growth phase Synthesis phase 2nd Growth phase

B. M-Phase/Mitosis & Cytokinesis M-Phase - The portion of the cell cycle in which the ____________divides (called __________) and the ___________ divides (called ____________) Nucleus Mitosis Cytoplasm Cytokinesis 4. Diagram the Cell Cycle. Label each of its phases: Interphase G1 S G2 Mitotic (M) phase: Mitosis Cytokinesis

Reproduction Rates 5. Prokaryotic cells reproduce much ___________ than eukaryotic cells. A prokaryotic (bacterium) cell divides once every ___________________. A eukaryotic (human skin) cell divides once every ____________. Faster 20-30 minutes 24 hours

Cell Cycle Diagram http://media.hhmi.org/biointeractive/click/cellcycle/