Multiple choice

EDTA is commonly used in tissue culture media. It is

  1. a vitamin necessary for the increased growth of cells

  2. a hormone required to trigger cell division

  3. an enzyme to help in the absorption of nutritive substances

  4. a chelating agent used to keep the important elements in suspension
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When working with plant tissue culture, we use EDTA as a chelating agent in order to keep magnesium and other elements in suspension, so that the plant tissue can easily absorb them (EDTA is ethylenediaminetetraacetic acid).

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