Specialised cells
- Created by: jessicawarren
- Created on: 05-04-16 13:20
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- Specialised Cells
- Epithelial tissues
- Collection of similar cells that perform a specific funtion
- Epithelial: found in animals, consist of sheets, line surfaces of organs
- Line surface of organs, have protective/secretory function
- Thin, flat cells for diffusion e.g alveoli
- Organs
- Combination of tissues organised to perform specific function
- Animals: stomach- muscle to churn food, epithelium to protect wall, connective to hold other tissues together
- Plants: palisade mesophyll for photosynthesis, spongy mesophyll for gaseous diffusion, epidermis for protecting leaf, phloem for transporting away from leaf, xylem for transporting to leaf
- Organ systems
- Group of organs that perform specific function
- Digestive system- salivary glands, oesophagus, stomach, ileum, pancreas, liver
- Respiratory- trachea, bronchi, lungs
- Circulatory- heart, arteries, veins
- Epithelial tissues
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