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Cells, Tissues, & Organs

Cells, Tissues, & Organs. From the cell to organ systems. Levels of Organization. Cell specialization. All multicellular organisms begin life as a single cell Through a process called cell differentiation stem cells develop into specialize cells. Types of Specialized Cells.

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Cells, Tissues, & Organs

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  1. Cells, Tissues, & Organs From the cell to organ systems

  2. Levels of Organization

  3. Cell specialization • All multicellular organisms begin life as a single cell • Through a process called cell differentiationstem cells develop into specialize cells

  4. Types of Specialized Cells In the human body

  5. Muscle cells • Long and thin structure • Can change size when they contract • High concentration of mitochondria to supply energy when they change shape

  6. Nerve Cell • Structure: long, threadlike branches • Allows cells to receive and transmit signals from other cells throughout the body

  7. Red Blood Cells • Structure: donut-like shape, with a depression instead of a hole at the centre • Provides lots of surface area to carry oxygen

  8. Bone Cell • Structure: framework of hard materials • Contains minerals that provide strength and support, and hold the cell together

  9. Skin Cell • Structure: thin and flat, form in layers of cells • Creates a barrier that keeps invaders out and moisture in

  10. Four Types of Tissues In the human body

  11. Muscle Tissue

  12. Epithelial Tissue

  13. Connective Tissue

  14. Nervous Tissue

  15. Organs • Different kinds of tissues working together for a specific task are called organs • Organs come work with other organs in the body to form organ systems • These organ systems are all interconnected, so if there is a problem with one system, this will affect several other systems in the body

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