Biology Topic One
- Created by: em3fr
- Created on: 18-03-19 18:52
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- Biology T1
- Cells
- Procaryotes - single celled organism
- Eukaryotes - complex cells
- Animal cells
- Cytoplasm, Nucleus, Cell Membrane, Mitochondria,
- Plant cells
- Everything an animal cell has + Chloroplasts, Cell wall, vacuole
- Microscopy
- Electron Microscope
- Use electrons instead of light to form an image
- Better quality/definition
- Light Microscope
- Use light and lenses
- Magnification = image size/real size
- Electron Microscope
- Differentiation + Specialisation
- Differentiation is when a cell becomes specialised for its job
- Sperm cells - mitochondria and long tail
- Root hair cells - large surface area
- Chromosome + Mitosis
- Chromosomes hold all your genetic information
- Mitosis - division of cells to make daughter cells
- Binary Fission
- Prokaryotic cells way of replicating
- Culturing microorganisms
- Way to grow bacteria in a lab
- The larger the inhibition zone, the better the antibiotic
- Stem cells
- Cells, that can turn into any type of cell - undifferentiated
- Can cure diseases
- Diffusion + Osmosis
- Diffusion is the spreading out of particles from higher concentration to lower
- Water molecules moving through partially permeable membrane from higher conc. to lower
- Active Transport
- Lower concentration to higher
- Cells
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