Auxins are added to the growth medium used in plant tissue culture.
Which statement gives the reason?
To kill any bacteria or fungi that may be present on the growth medium
To provide the small groups of cells with a source of glucose for energy
To make sure that all the new plants produced are genetically identical
To promote the growth of the small groups of cells into new plantlets
59 exam-style questions on AQA GCSE Biology 5.4 Plant hormones, covering 5.4.1 Control and coordination and 5.4.2 Use of plant hormones (HT only). Each one has a worked solution and a mark scheme showing where the marks go.