biological drawings

  • Created by: Aliza12
  • Created on: 13-10-19 15:29
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  • Biological drawing
    • Drawings should always be in pencil. Fine detail cannot be represented accurately unless the pencil has a sharp point.
    • The outlines of any structures should be drawn but there should be no colouring or shading.
    • The relative sizes of the structures drawn should be accurate. 
    • If required, the drawn structures should be labelled, using label lines that do not cross or obscure the drawing, with brief annotations about their functions or interrelationships.
    • The drawing should have an explanatory title and an indication of the real size of the structures drawn or of the magnification used.
    • Cell drawing
      • show accurately the components of individual cells observed using an optical microscope. The drawing should be detailed but should not show more than two or three cells.
    • Tissue map
      • purpose of a tissue map is to show the location and extent of tissues in an organ or in a whole organism. Cellular detail of any of the tissues should not be shown. Instead, the outline of each tissue should be drawn. This often presents a problem, since cell differentiation is seldom discrete. 
    • Body plan
      • Following dissection, a morphological drawing should provide a lifelike representation of the main body parts exposed by the dissection. A small part drawn well is much better than a full drawing drawn badly.
    • Errors when drawing
      • Cell outline
      • crossing lines
      • tissue with too much detail
      • hanging lines
      • over casual
      • sketch rather than a drawing


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