What happens when a seed absorbs water and causes the plant embryo to release gibberellin?
A)glucose levels decrease as a direct effect of gibberellin on the endosperm
B)the aleurone starts expressing amylase inhibiting transcriptional repressors
C)a protein-rich layer of cells surrounding endosperm starts growing in response to the hormone
D)the endosperm absorbs the hormone
E)amylase is released from the aleurone and breaks down starch in endosperm

Question

Quizplus · Accepted Answer

When a seed absorbs water and causes the plant embryo to release gibberellin, the hormone stimulates the synthesis and secretion of amylase by the aleurone layer, which is then transported to the endosperm where it breaks down starch into glucose for the growing embryo to use as an energy source. This process is known as seed germination. Therefore, the correct answer is E.

What Happens When a Seed Absorbs Water and Causes the Plant