1. Cells Structure, Function and Organization one-celled organism amoeba proteus human red blood cell plant cell from the leaf of a poplar tree single-celled bacteria of the type: E. coli

3. LEVELS OF ORGANIZATION The levels of organization in complex organisms, including most plants and animals, consist of cells, tissues, organs, and organ systems.

4. Organization of living organisms Cell tissue organ system

5. What is a Cell?Cell Cell is the basic unit of structure and function in living things.

6. Function In complex organism you can find different kinds of cells. Each cell or group of cells has a specific job.

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8. Tissue in the Human body

9. Tissue A group of similar cells that perform the same function. The animal body has 4 types of tissue: –Muscle –Nerve –Connective –Epithelial

10. Muscle tissue It is a contractile tissue of the body. Contraction of the muscle tissue functions to make parts of the body to move. The 3 types of muscle tissue are cardiac, smooth, and skeletal

11. Nerve tissue Directs and control the body. Carries messages back and forth. Tissue is specialized to react to stimuli and to conduct impulses to various organs in the body which bring about a response to the stimulus. Nerve tissue (as in the brain, spinal cord and peripheral nerves that branch throughout the body) are all made up of specialized nerve cells called neurons

12. Brain???

13. Connective tissue Provide a framework, protects tissues and organs, connects all the parts of the body and support its structure. Specialized forms of connective tissue. –Cartilage and bone; protect internal structures and give support to the body –Fat; insulation

14. Epithelial tissue Membranous tissue covering internal organs and external surfaces of the body. Functions: –Protects internal/external structures –Absorb or release substances

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16. Organs Structure composed by different kinds of tissue and has an specific function.

17. Organs Each organ is part of a system!

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19. Organ systemOrgan system bp Consist of organs that interact physically, chemically, or both to perform a common function. Functions –maintain stable internal conditions. –acquire nutrients and raw materials –dispose of wastes –protect the body against injury and attack –allow reproduction and nourishment of young.

20. Organ system

21. Organ System We are going to learn about eleven organ systems that contribute to the survival of the living cells of the vertebrate body: Integumentary Muscular Skeletal Nervous Endocrine Circulatory Lymphatic Respiratory Digestive Urinary Reproductive

22. Rap of the systems Systems song

23. HOMEOSTASIS The organ systems in an organism work together to maintain homeostasis- the process by which an organism’s internal environment is kept stable in spite of changes in the external environment. Three examples of homeostasis are: Water Balance Maintaining Temperature Responding to Stimuli