Label the basic structural components of a flower: the pedicel, receptacle, sepals, and petals.

 Examine the flower provided by a cherry tree. Part a: Label the basic structural components of a flower: the pedicel, receptacle, sepals, and petals.

Part b: Draw the male organs of a flower and label its parts: anther, filament, microsporangia, and microspores/male gametophytes. Be sure to make a note as to where meiosis occurs and the microspores develop.

Part c: Draw the female organs of a flower and label its parts: the stigma, style, ovary, and ovule(s) (some flowers have one ovule per ovary while other have many).

Q.2: During the process of double fertilization the pollen tube elongates until it reaches the opening to the ovule (the micropyle), where the sperm are released into the ovule. Complete parts a-c.

A: Draw a longitudinal section of an unfertilized, immature ovule. Label the integument, megasporangium, and megaspore mother cell.

B: Draw a longitudinal section of a mature, but unfertilized ovule. Label the integument, megasporangium, and megagametophyte with the 7 embedded cells.

C: Draw a longitudinal section of a mature, but fertilized ovule (i.e. a seed). Label the seed coat, endosperm, embryo, and cotyledons.