Upgrade to remove ads
Only $35.99/year

Lecture 8 Plant BIO Midterm

Terms in this set (19)

Seed Plant Characteristics
heterosporous, spores remain within sporangia, seed with a matured ovule containing an embryo, pollen
Ovule consists of
megaspore a megasporangium surrounded by integuments, micropyle, nucellus
the nucellus is
megasporangium
micropyle
The opening to the ovule in a flowering plant
After fertilization, seeds consist of
an embryo, stored foos, and a seed coat
A seed coat is derived from
integuments
Two major types of seed plants
gymnosperms and angiosperms
gymnosperms are
Naked seeds or seeds not enclosed within a fruit
4 phyla of gymnosperms
1. Cycadophyta
2. Ginkgophyta
3. Gnetophyta
4. Coniferophyta
gametophytes have a microgametophyte in the form of
a pollen grain
Conifers include
firs, pines, spruce, cedar, and redwood
pines produce leaves in bundles called
fascicles
pines produce sporangia in separate cones or
strobili
microsporangiate cones produce
pollen
megasporangiate cones produce
ovules
in seed plants, the _ _ is the microgametophyte
pollen grain
Cycadophyta
palm-like plants, seeds born in strobili with male and female cones on separate plants, tropical, motile sperm
Ginkgophyta
only one living species, male and female plants are separate
gnetophyta
highly specialized plants, thought to be most closely related to angiosperms
Other sets by this creator