BIOL 15b Lecture Notes - Lecture 24: Nuclear Membrane, Telophase, Microfilament
4 May 2017
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Document Summary
Neurons and heart cells do not replace. Muscular and nervous tissue do not replace. Digestive system replaces almost every 3 days. Red blood cells are replaced monthly because they have no nucleus. In replication it starts at this point and replicated around the loop till completion. The cell in a prokaryote has a cell wall and a cell membrane. The dna is attached to the cell wall at one point. The cell is roughly the same size but then starts to elongate. The cell then starts to pinch in the middle - fission. Interphase: g1 phase (cell grows, organelle duplication), s phase (dna replication), g2 phase (cell grows) G0 phase is when the cell is productive and has a function. Metaphase chromosomes align in middle of cell. Anaphase chromosomes split and cell grows apart. Telophase actin (microfilaments) migrate to middle of cell as it pinches. Cytokinesis is then when the cell fully separates.
