DENDROLOGY

Detailed explanation-1: -A bean is actually a seed that contains the embryo of a future plant. The embryo is packaged with a food source to use during its early stages of growth, and is covered with a protective seed coat. Soaking the bean in water activates germination of the seed, and the embryo inside begins to grow and unfold.

Detailed explanation-2: -Plumule is the part of the embryo which emerges from the seed and develops into the shoot of the plant. It further develops organs such as the stem, flowers, fruits and seeds.

Detailed explanation-3: -The embryo is the fertilised ovule, an immature plant from which a new plant will grow under proper conditions. The embryo has one cotyledon or seed leaf in monocotyledons, two cotyledons in almost all dicotyledons and two or more in gymnosperms.