Overview of Level of Organization

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Presentation transcript:

Overview of Level of Organization big eco-system systems community population organism organs system organ tissues tissue cell cells molecule small atom

Mitosis – Cell Multiplication How we get many cells to make tissues in the body? A process that cells use to make lots of copies of itself It has two (2) parts:  cell cycle  cytokinesis Cell cycle: Interphase Prophase Metaphase Anaphase Telephase I Play Me A Tune … Cytokinesis: cell division

Mitosis – Cell Multiplication I Play Me A Tune … Interphase no cell division DNA is coiled up into a black dot DNA

Mitosis – Cell Multiplication I Play Me A Tune … Prophase DNA unfolds and spread out DNA is now called chromosome Chromosome comes in two (2) copies tied at the middle by the centromere

Mitosis – Cell Multiplication I Play Me A Tune … Metaphase Chromosomes line up at the middle

Mitosis – Cell Multiplication I Play Me A Tune … Anaphase Chromosomes split into halves and each half is being pulled towards the poles

Mitosis – Cell Multiplication I Play Me A Tune … Telophase Chromosomes are at the pole Cell starts to break apart Cytokinesis – Cell breaks apart forming 2 daughter cells Interphase cell cycles start again