Card Set Information
Botany, seeds and development
Flow chart of megagametophyte development.
1. Begin with a microsporocyte
2. Now have 1 megaspore and 3 small, dead cells
3. Now have 8 nuclei in one cell
4. Now have the following:
3 antipodal cells (haploid)
2 polar nuclei in central cell (each is haploid)
The egg apparatus
-2 synergid cells (haploid)
-1 egg cell (haploid)
Flow chart of microgametophyte formation:
2. Now have 4 microspores
3. Two things developed
-vegetative cell (growth) pollen tube
-generative cell (mitosis) 2 sperm cells
What ploidy is the endosperm nucleus?
As the ovule develops into a seed, the ovary matures into a ___
What are the 3 layers of a fruit?
: outer most layer
: flesh, innermost layer
: may be tough like a stone or pit
What is the pericarp?
The entire fruit wall, no matter how many layers it has.