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A-Level Biology OCR A

Plant Stained Sections Put Dye Make Clean Describe

To prepare stained plant stem sections, plant material is soaked in a colored dye for 24 hours, followed by transverse and longitudinal cuts for observation.

Para preparar secciones teñidas de tallos de plantas, el material vegetal se sumerge en un tinte coloreado durante 24 horas, seguido de cortes transversales y longitudinales para su observación.

Front Describe how to produce stained sections of plant stems for viewing under microscope.
Back Preparing stained sections of plant stems:
  • Put plant material into water containing strongly colored dye for 24 hours
  • Remove plant from dye rinse it 
  • Make clean transverse cuts across stem with sharp blade on white tile
  • Make clean longitudinal cut thru region where vascular bundles would be expected to be
  • Put on slide and carry out wet mount if observing living tissue

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