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created for 5th grade science classroom

created for 5th grade science classroom

Published in: Education, Technology

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  • 1. Cells What is a cell? What’s inside a cell? What are the differences between animal cells and plant cells.
  • 2. What is a cell? • A cell is the smallest unit that is capable of performing life functions. • The cells theory states the following: – All living things are made up of cells. – All cells come from preexisting cells through cell division. Red Blood Cells Cheek (Skin) Cells Onion Cells
  • 3. Examples of Cells Amoeba Proteus Plant Stem Bacteria Red Blood Cell Nerve Cell
  • 4. What is inside a cell? • Cells are made up of • Some organelles are parts called organelles only found in plant cells. or “little organs”. – These include cell walls • The parts of a cell that and chloroplasts. we are going to discuss – The vacuoles found in include: plant cells are larger. – Cell Membrane – Cell Wall – Nucleus – Cytoplasm – Chloroplasts – Vacuoles – Mitochondria
  • 5. Cell Membrane • Surrounds a cell, allows certain materials to enter the cell and waste products to exit • Outer membrane of cell that controls movement in and out of the cell • Double layer
  • 6. Cell Wall • Tough material surrounding the cell membrane in plant cells. • Most commonly found in plant cells & bacteria • Supports & protects cells
  • 7. Nucleus • Directs cell activities • Separated from cytoplasm by nuclear membrane • Contains genetic material - DNA
  • 8. Cytoplasm • All the material of the cell between the cell membrane and the nucleus • Gel-like mixture • Surrounded by cell membrane • Contains hereditary material
  • 9. Mitochondria • The cell’s power producers. • Mitochondria combine oxygen and food to produce energy in the process of cellular respiration. • Controls level of water and other materials in cell
  • 10. Vacuoles • Membrane-bound sacs for storage, digestion, and waste removal • Contains water solution • Larger in plant cells • Help plants maintain shape by storing water
  • 11. Chloroplast • Uses the energy in sunlight to turn water and carbon dioxide into sugar and oxygen (a process called photosynthesis) • Usually found in plant cells • Contains green chlorophyll
  • 12. What are the differences between plant and animal cells? • Plant cells are much like animal cells, except for 3 important differences. – Plant cells have cell walls, which make them appear rectangular-shaped. These structures are composed of cellulose, hemicellulose, and a variety of other materials. – Plant cells have chlorophyll, the light-absorbing pigment required for photosynthesis. This pigment is contained in structures called chloroplasts, which makes plants appear green. – Plants cells have a large, central vacuole. While animal cells may have one or more small vacuoles, they do not take up the volume that the central vacuole does (up to 90% of the entire cell volume!). The vacuole stores water and ions, and may be used for storage of toxins.
  • 13. Plant Cell vs Animal Cell
  • 14. What am I, plant or animal?
  • 15. Plant Cell Animal Cell
  • 16. Pictures of cells Cancer cell being attacked by the immune system
  • 17. Nerve Cells Cheek (Skin) Cells Liver Cells
  • 18. A plant cell from the leaf of a poplar tree Plant cell with nucleus Seaweed under a microscope very visible
  • 19. Stomach Cells Cardiac Muscle (Heart) Cells Muscle Cells Bone Cells
  • 20. Very thin slice of plant skin Orchid (flower) cells Leaf Cells of Moss Cells in a plant root
  • 21. Credit Slide • Pictures were found via yahoo image search. • Some information was found via yahoo search. • Some information was retrieved from