Required Practical 4 - Permeability of Cell-Surface Membranes Flashcards

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1
Q

Suggest why it is important that discs are cut from the same beetroot tissue

A

Different parts of beetroot will have different amounts of pigment

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2
Q

Suggest why beetroot cylinders are cut into discs using forceps and a scalpel

A

Minimise risk of injury

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3
Q

Suggest why beetroot discs are washed in cold distilled water and dried

A
  • beetroot cells have been ruptured so pigment will leak out

- ensures that all pigment leaks out due to variable changed

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