Question

In a germinating dicot seed, what are the main parts? Name any two and write their function.

Answer 1

Main parts of an embryo of dicot seed are:

• Plumule: Terminal portion of epicotyl which gives rise to shoot system.
• Radicle: Terminal portion of hypocotyl which gives rise to root system.
• Epicotyl: The portion of embryonal axis which is above the level of cotyledons.
• Hypocotyl: The portion of embryonal axis which is below the level of cotyledons.
• 2 Cotyledons attached to embryonal axis.
• Hilum: The scar showing the place where the ovule was attached to placenta.
• Micropyle: Opening through which pollen tube enters the ovule.