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Cell Organization and Human Body Systems: Understanding the Levels of Organization

This resource provides information on the levels of organization in the human body, from stem cells to specialized cells, tissues, organs, organ systems, and the whole organism. Learn about the different types of cells and their functions, as well as the 11 major organ systems in the body.

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Cell Organization and Human Body Systems: Understanding the Levels of Organization

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  1. Day 4, Jan. 18 1.Please put your signed forms on your desk (Letter, discipline form, and lab safety agreement form) Check to see if it is signed in all three places. 2. Metric Practice-Lab Grade 3. Handout on body systems Fri. Test- Ch. 28

  2. KEY CONCEPT The human body has five levels of organization.

  3. red blood cell nerve cell Steps in Cellular Organization • 1. STEM CELLS can become any of 200 types of specialized cells in the human body.

  4. Stem cells develop in two stages: • 2.Determination-committing to become one cell type • 3. Muscle • 4.Differentiation-acquiring specialized structures and functions • 5.cardia, smooth,skeletal

  5. cell tissue Specialized cells function together in tissues, organs, organ systems, and the whole organism. • 6.Specialized cells –the smallest form of life • 7.Tissues are groups of similar cells working together to perform a specific task. • Examples: • epithelial tissue • connective tissue • muscle tissue • nervous tissue

  6. ORGANS ORGAN SYSTEM ORGANISM • 9.Organ systems are two or more organs working together. • 10.Organism collection of organ systems working together. • 8.Organs are different tissues that function together.

  7. There are 11 major organ systems in the human body.

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