Question 20 Signalling for IAA redistribution in response to light and gravity is thought to be mediated by _________ and _________ respectively O pigmin moieties / gravitripins O phototropins / statoliths O None of the other answers are accurate O Pressure on the endoplasmic reticulum / Ca2+ signals O phytochrome / starch granules
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This relates to plant tropisms: phototropism (response to light) and gravitropism (response to gravity). Show more…
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The gibberellins $a$. are responsible for phototropism and gravitropism. $b$. are gases at room temperature. $c$. are produced only by fungi. $d$. cause bolting in some biennial plants. $e .$ inhibit the synthesis of digestive enzymes by barley seeds.
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