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Term 3 Science (THE EYE (Aqueous Humour (Watery fluid between Cornea and…

- - - - All organisms are composed of one or more cells.
      - Cells are the basic unit of life and structure.
      - New cells are created from existing cells
  - - - bacteria
    - - Animals, humans, plants
  - - - Light microscopes use visible light and a system of lenses to magnify images
      - Electron Microscopes use electrons to create images.
        
        Can magnify up to a million times. shows more detail. 3D
  - - - Control center of the cell; contains DNA
    - - Tiny strands inside the nucleus which give out instructions for the cell to follow
    - - Assembles amino acids to create proteins
    - - Has passageways that carrys proteins and other materials from one part of the cell to another.
    - - Captures energy from the sunlight and uses it to produce food in plant cells
    - - Receives proteins and minerals from the ER, packages them and distributes them
    - - Stores food, water, wastes, and other materials
    - - Gel-like fluid where the organelles are found
    - - Ridged outer layer of a plant cell
    - - controls what comes into and out of a cell. Found in both cells
    - - Produces the energy a cell needs to carry out its functions
  - - - Unicellular
      - No organelles, No nucleus
      - Simple Cells
      - Bacteria
      - Free-floating DNA
    - - Multicellular
      - Membrane-bound Organelles
      - Complex
      - Animal, Plant, Fungi, and Protists
      - DNA found in Nucleus
- - - - Since the particles in a solid are closely packed together, sound will travel faster in Solids than in any other state.
    - - Sound will travel at a normal/slow speed in gases since the particles are spread out in gases.
    - - A compression sound can travel easily through water
  - - - They appear coloured due to the coloured object absorbing all of the colours except for the one we can see, which is being reflected