Biology
List five plant growth hormones and mention one important role of each.
Answer
- Auxins — Auxins promote the growth of stem, roots and fruits by cell elongation.
- Gibberellins — Gibberellins promote the growth of internodes by cell elongation.
- Cytokinins — Cytokinins stimulate cell division.
- Ethylene — Ethylene helps in ripening of fruits.
- Abscisic acid — Abscisic acid induces dormancy of buds and seeds.