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A-Level Biology OCR A

Seeds Embryo Produce Food Stores Describe Process Germination

During germination, water absorption activates the embryo, which produces gibberellins to stimulate enzyme production that breaks down food stores, providing the embryo with ATP for growth and breaking through the seed coat.

Lors de la germination, l'absorption d'eau active l'embryon, qui produit de la gibbérelline pour stimuler la production d'enzymes décomposant les réserves alimentaires, fournissant ainsi à l'embryon l'énergie nécessaire à sa croissance et à la rupture de l'enveloppe de la graine.

Front Describe the process of germination in seeds including the role of plant hormones.
Back Germination:
  • When seeds absorb water, embryo is activated and begins to produce gibberellins
  • They stimulate production of enzymes that break down food stores found in the seed
  • The embryo uses the food stores to produce ATP for growth and breaking through the seed coat

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