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Gibberellic acid breaks seed dormancy. It activates synthesis of alpha-amylase which breaks down starch into simple sugar.

1. Gibberellic acid activates alpha-amylase synthesis.
2. Alpha-amylase breaks down starch into sugar.
3. Gibberellic acid breaks seed dormancy.
4. Gibberellic acid is a plant hormone.

Correct answer: Gibberellic acid activates alpha-amylase synthesis.

Solution

Gibberellic acid promotes germination by inducing the seed to make alpha-amylase. That enzyme then digests stored starch into sugars, so the key correct statement is the activation of alpha-amylase synthesis.

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