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ALL organisms are composed of cells which carry on the many functions needed to sustain life.

ALL organisms are composed of cells which carry on the many functions needed to sustain life. Cells are the fundamental unit of life Plants and animals are made of cells. Functions of life. Division-performed by cells to produce more cells Taking in nutrients Releasing waste

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ALL organisms are composed of cells which carry on the many functions needed to sustain life.

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  1. ALL organisms are composed of cells which carry on the many functions needed to sustain life. • Cells are the fundamental unit of life • Plants and animals are made of cells

  2. Functions of life • Division-performed by cells to produce more cells • Taking in nutrients • Releasing waste • Using energy to do work • Producing materials the organism needs

  3. One-celled organisms must contain parts to carry out all life functions.amoeba

  4. One-celled organism parts:Bacteria

  5. One-celled: paramecium

  6. Multicellular organisms have specialized cells that perform different functions. • These cells join together to form tissues that give organs their structure and enable organs to perform specialized functions within organ systems. • Structures of specialized cells (like nerve & muscle) relate to the function that cell performs. • Tissues that make up organs relate to the function the organ performs (heart valves control blood, air sacs in lungs maximize surface area for gas tranfer • Components and functions or digestive, circulatory, and respiratory systems in humans interact.

  7. Plant & Animal cells carry on life functions, so they have parts in common: • Nuclei • Cytoplasm • Cell membranes • Mitochondria PLANTS ONLY: • Chloroplasts • Cell wall

  8. Plant cells

  9. Plant cell parts

  10. Animal cells

  11. Animal cell parts

  12. Levels of Organization

  13. Organism

  14. Specialized Cells

  15. Nerve Cells

  16. Blood Cells

  17. Chemical Compounds in Cells

  18. Movement Across the Cell membrane

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