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Cell Diversity
Term | Definition |
---|---|
Tissue | A group of cells working together |
Plant Tissues | Dermal, ground, vascular, meristematic |
Dermal Tissue | For protection |
Vascular Tissue | To transport materials around the plant- xylem and phloem |
Xylem | Transports water around the plant |
Phloem | Transports food around the plant |
Animal Tissues | Epithelial, connective, muscular, nervous |
Epithelial Tissue | Covers the internal and external surfaces of the body |
Muscular Tissue | Can contract and is found in muscles and organs |
Connective Tissue | Joins and supports other body structures |
Nervous Tissue | Carries electrical impulses to and from the brain and spinal cord |
Tissue Culture | The growth of cells on a sterile nutrient medium outside the body |
In Vitro | Outside the body |
In Vivo | Inside the body |
Micropropagation | The growth of large numbers of plants from very small plant pieces |
Benefits of Micropropagation | Quick, cheap, plants are identical |
Uses of Micropropagation in Humans | Cancer research, skin graphs |
Organs | A group of tissues working together |
Plant Organs | Epidermis, vascular bundles,palisade and spongy mesophyll cells |
Organ System | A group of organs working together eg. circulatory system, digestive system |