Part B: The Embryo Sac Examine the demonstration slide of a c.s. of a lily ovary. Find an ovule. Identify the funiculus, the chalaza, the integuments, the micropyle, and the developing female gametophyte. The latter is commonly referred to as the embryo sac in angiosperms. If your slide has several embryo sacs, they are likely to be at variable stages of development. (See text Figure 19-18 b, c, page 469.) Like the female gametophyte in pine, the embryo sac develops from a megaspore. 5. Label the ovary wall, ovule, integuments, and developing embryo sac in Figures 3. and 4. below. нопо walls Ouluc Figure 3. Lilium ovary c.s. Photo by Carolyn Alling Ma

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Chapter32: Plant Reproduction
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Part B: The Embryo Sac
Examine the demonstration slide of a c.s. of a lily ovary. Find an ovule. Identify the
funiculus, the chalaza, the integuments, the micropyle, and the developing female
gametophyte. The latter is commonly referred to as the embryo sac in angiosperms. If
your slide has several embryo sacs, they are likely to be at variable stages of development.
(See text Figure 19-18 b, c, page 469.) Like the female gametophyte in pine, the embryo sac
develops from a megaspore.
5. Label the ovary wall, ovule, integuments, and developing embryo sac in Figures 3.
and 4. below.
нопо
walls
Ouluc
Figure 3. Lilium ovary c.s.
Photo by Carolyn Alling
Ma
Transcribed Image Text:Part B: The Embryo Sac Examine the demonstration slide of a c.s. of a lily ovary. Find an ovule. Identify the funiculus, the chalaza, the integuments, the micropyle, and the developing female gametophyte. The latter is commonly referred to as the embryo sac in angiosperms. If your slide has several embryo sacs, they are likely to be at variable stages of development. (See text Figure 19-18 b, c, page 469.) Like the female gametophyte in pine, the embryo sac develops from a megaspore. 5. Label the ovary wall, ovule, integuments, and developing embryo sac in Figures 3. and 4. below. нопо walls Ouluc Figure 3. Lilium ovary c.s. Photo by Carolyn Alling Ma
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