Gibberellin stimulates germinating wheat grains to synthesise amylase. The drawing shows a wheat grain and the locations of the endosperm and the embryo. Describe an experiment to determine if gibberellin stimulates the synthesis of amylase by the endosperm or embryo of a wheat grain. (6) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

Biology

IGCSE&ALevel

EDEXCEL

Exam No：WBI1601-que-20241029 Year：2024 Question No：1(b)

Answer:

A description that includes six of the following points:
- use of aseptic technique (1)
- \{cut seed in half / to separate endosperm from embryo\} (1)
- soak both halves in gibberellin (1)
- use of control (from grains) not soaked in gibberellin (1)
- place (grain halves cut side down) on starch agar plate (1)
- incubate for a stated time (range 24-48 hours) / at a \{stated / fixed\} temperature (1)
- add iodine (to plate after incubation) (1)

Answer:

Knowledge points:

Solution:

Answer:

Knowledge points:

Solution:

Related Question