Cells
- Created by: LauraNannini
- Created on: 20-04-20 07:26
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- Topic 5
- The nucleus
- Ribosome
- Golgi apparatus
- Mitochondia
- Chloroplast
- Bacterium
- Viruses
- Magnification
- Transmission electron microscope
- Shows organelles within a cell
- Uses electron beams and magnets to focus on a specific area
- Scanning electron microscope
- Shows the surface and topography of cells
- Scanning electron microscope
- Scanning electron microscope
- Shows the surface and topography of cells
- Transmission electron microscope
- Cell stages
- Prophase - Metaphase - anaphase - telophase
- Interphase
- The DNA begins to replicate and proteins are being made
- Prophase
- DNA coils up and contracts
- Metaphase
- The nuclear envelope breaks down and spindle fibres attach to he centromeres and pull the chromosomes to the center of the cell
- Anaphase
- The centromeres split and the chromatids separate and pull to opposite ends of the cell
- Telophase
- Chromosomes group together at opposite ends
- Cytokinesis
- The cell membrane divides into 2 identical daughter cells
- Ultracentrifugation
- 1- Nucleus
- 2- Mitochondria
- 3- Ribosomes, golgi apparatus and smaller organelles
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