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GCSE Biology 2020-2022 OCR Gateway

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Pregunta:

How can you Prepare a Specimen before you put it under a Microscope?

Autor: eric_galvao



Respuesta:

-Light has to let Through the Specimen. If its Thick then just get a Thin Slice via Cutting it -Get a Clean Slide [Glass or Plastic] and use a Pipette to drop 1 Drop of Water or Mountant, which will Secure the Specimen in Place -Using Tweezers, place your Specimen on the Slide -Add a Drop of Stain, if Needed [Colourless or Transparent] Stains can Highlight Key Structures eg Eosin --> Cytoplasm -Put a Cover Slip at 1 End of the Specimen, at an Angle with a Needle -Lower the Slip and Press it down with said Needle so not Air Bubbles are Trapped


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