Lab Quiz 3: Gymnosperms
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34 Terms
naked seeds
What does gymnospermos mean in Greek?
Gymnosperms
A group of four plant phyla that have seeds "naked" on the surface and contained in a cone.
Angiosperms
A phylum of plants that has seeds enclosed in a ripened ovary.
Ginkgoes, cycads, conifers, gnetophytes
What are the four phyla of gymnosperms?
Butyric acid
What does the seed coat of ginkgo "female" trees contain?
not edible
Is the seed coat of ginkgo trees edible or not edible?
no
Is the fleshy seed coat of ginkgo trees a fruit?
dinosaurs
Hypothesized: Ginkgo seeds were once dispersed by small, carrion-feeding ____________
yes
Are ginkgo seeds edible?
flat side
On what side of a pine needle are the stomata found?
rows
How are the stomata arranged on a pine needle? In _______.
Yes
Are pines monoecious?
Microstrobuilus
Male cones
Pollen cones
Cones that are subterminal and spirally arranged. They are also ephemeral (short-lived) and non-woody.
pollen
The male cones are the ______ cones.
Two
How many microsporangia are found on the lower surface of each microsporophyll in pines?
Simple
A _________ strobilus sits only on a modified leaf (sporophyll).
Two
How many microsporangia per microsporophyll?
Lower
Microsporangia are found on the __________ surface of the microsporophylls.
Microsporangia
_______________ are found on the lower surface of the microsporophylls.
Microsporophylls
Microsporangia are found on the lower surface of the ___________.
Tube cell
The cell that forms the pollen tube
Generative cell
The cell that forms sperm in pollen
Prothallial cells
Cells in the pollen that are sterile.
Ovule
A megasporangium and its contents surrounded by integuments
Two
How many ovules per ovuliferous scale?
Leaf
A pine needle is really the...
Monoecious
The same organism has both male and reproductive parts, but they are found in different structures
pine cone
A seed cone is also called a _______ _________.
Megaspore
An immature ovule contains only the ___________
Immature
An _____________ ovule contains only the megaspore.
Integument
Outer layer of protection
Compound
In a ___________ strobilus, the ovule sits on both a modified leaf and a modified stem
leaf; stem
In a compound strobilus, the ovule sits on both a modified leaf and a modified stem