NEET Biology Plant Growth And Development Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Answer: (b)

Gibberellins promote seed germination. Gibberellins are weakly acidic growth hormones having ring structure and cause cell elongation of intact plants in general and increased internodal length of genetically dwarfed plants. Gibberellins are synthesized in the apical shoot buds, root tips and developing seeds. During seed germination, especially of cereals gibberellin stimulates the production of some messenger RNAs and then hydrolytic enzymes like amylases, lipases, proteases. The enzymes solubilize the reserve food of the seed.