Cells the structure of life

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description of basic parts of a cell; Membrane, cytoplasm, wall, nucelus, ribosome, mitochondria, cholophyll.
For middle grades

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Cells the structure of life

  1. 1. Cells- The Structure of Life Today we will be exploring different kinds of cells, and parts of cells.
  2. 2. 2 Kinds of Cells• Prokaryotic – Less Complex – Missing a nucleus, and some other structures which Eukaryotic cells have• Eukaryotic – More Complex – Include a Nucleus
  3. 3. Plants and Animals- Different cells• Plant Cells • Animals Cells • Have rigid a Cell wall • No cell walls • Have • No choloroplasts Choloroplasts, which produce food.
  4. 4. Did you know?The parts within a cell are called “Organelles” Different organellesdo different thingsSome Parts of Eukaryotic Cells
  5. 5. Cell Membrane• The “bag” around the outside of a cell, holding everything inside • There are little holes in the bag to let certain things in and out • Lets the good things in, and keeps the bad things out.
  6. 6. Cytoplasm• The liquid within a cell – A special fluid which the organelles in a cell exist and interact in – Includes many molecules the cell needs to function – Also called cytosol
  7. 7. Cell wall• Only plant cells have a cell wall – The wall is made of cellulose and is rigid (hard) • “Cellulose provides a protected framework for a plant cell to survive. Its like taking a water balloon and putting it in a cardboard box. The balloon is protected from the outside world.” – Biology4kids.com
  8. 8. Ribosomes• Ribosomes help make proteins, which cells need to do all sorts of things. – They translate the code of DNA and use building blocks call amino acids to make proteins
  9. 9. Mitochondria• Mitochondria create energy for the cell. – Like your digestive system, mitochondria break down nutrients, which releases energy – The process of creating this energy is called cellular respiration
  10. 10. Choloroplasts• Only Plants (and some protists) have them! – They convert the energy of the sun in to sugar (which mitochondria break down later for energy) • You can see them in cells- they are always green – This process is called photosynthesis. Photosynthesis also releases oxygen.

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