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- A group of similar cells adapted to carry out the same function
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- On the outside of plants
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- Epidermis
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- Protection
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- Epidermis cells have slightly thickened cell wall
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- Transport tissue
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- Long hollow tubes
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- Transport water and dissolved materials throughout the plant
- Provides support to plant
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- Series of tube like structures
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Transport food from the leaves to other parts of the plant
REMEMBER - the “F” sound : Phloem=Food
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- A number of cells spread out in a matrix that are produced by connective cells
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- Blood
- Adipose tissue
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- Joins and supports other body structures
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- Neurons
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- Carry electrical impulses to and from brain and spinal cord
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- Long axons
- Highly branched dendrites
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- Growth of cells in an artificial medium outside an organism
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- In-Vitro
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- Sterile vessel containing living cells where the reaction takes place, set at the right temperature, right pH with nutrients that are essential for cell growth
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- Cells taken from carrot
- Cells grown on a suitable medium
- “Callus” of cells grow
- Callus is put in a different medium
- Carrot grows into young plant
- Young carrot can then be put into soil
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- Large number of plants can be grown
- All genetically identical (clones)
- Cheap way to grow products
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- New skin can be grown for patients who have been badly burned
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- Stem cell
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- Stem cells can grow into any body tissue
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- No need to remove skin from other parts of the body
- New skin is identical to patients skin so will not be rejected by the body
- Cancer Research
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- Structure composed of a number of tissues that work together to carry out one or more functions
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- root
- stem
- leaves
- flowers
- seeds
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- Heart
- Lung
- Brain
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- A number of organs working together to carry out one or more functions
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- 10
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- Digestive system
- Respiratory system
- Circulatory system
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Cells → Tissues → Organs → Organ Systems → Organism