Flashcards in Lecture 12-Plant Diversity II Deck (48)
Shared trait #1 between plants:
Also shared trait #1 between charophyceans and algae:
They are multicellular
Shared trait #2 between plants:
Also shared trait #2 between charophyceans and algae:
They are eukaryotic
Shared trait #3 between plants:
Also shared trait #3 between charophyceans and algae:
They are photosynthetic
Shared trait #4 between plants:
Also shared trait #4 between charophyceans and algae:
They have cell walls made of cellulose
Shared trait #1 between plants and charophyceans:
Rose shaped complexes
The rose-shaped complexes shared between plants and charophyceans are for __________ __________.
Shared trait #2 between plants and charophyceans:
Shared trait #3 between plants and charophyceans:
Formation of phragomoplast
Female structure containing megasporangium, megaspore, and integument.
Megaspores divide via __________.
Male structure containing microspore; transferred via wind or animals. Dispersal is water independent.
A pollen grain contains _____ sperm each.
Seed plants evolved how long ago?
Seed plants evolved in the __________ period.
The two groups of seed plants are:
Gymnosperms and Angiosperms
In __________, the ovule is not surrounded by ovary or fruit.
The 4 phyla of gymnosperms are:
Ginkophyta, Gnetophyta, Cycadophyta, and Coniferophyta
There is only one species in this phylum of gymnosperms.
Used in traditional medicine for circulatory disorders, memory enhancement, and dementia.
Most closely related to the angiosperm (according to classical views).
The only gymnosperm to exhibit "double fertilization". Not true double fertilization, because the second fertilization degenerates and does not form endosperm.
The gymnosperms known are cycads.
Gymnosperms dominant in the Mesozoic era.
Have crowns of stiff compound leaves with a short trunk.
Often mistaken as "palms", which are angiosperms.
Cycadophyta are __________.
Examples of this gymnosperm are pine and fir trees (most are evergreen).
This is the most species rich gymnosperm.
In __________, the ovule is surrounded by ovary or fruit.
Flowers are made up of:
The stamen, the carpel, and the petal & sepal.
In flowers, the male pollen producing structure.
The stamen is made up of two parts:
A filament and the anther
The __________ produces pollen.
In flowers, the female ovule producing structure.
The carpel is made up of 3 parts:
The stigma, the style, and the ovary
Where pollen is deposited.
During fertilization, pollen lands on the stigma, creating what?
A pollen tube along the style
Both sperms contained in each grain of pollen fertilize separate nuclei. This is called:
One of the sperms fertilizes the __________, the other sperm fertilizes the __________ __________.
Egg, polar nuclei
When one sperm fertilizes an egg, that becomes the:
When the other sperm fertilizes the polar nuclei, this becomes:
The __________ can be used for food.
Once an ovule is fertilized, the ovary matures into __________.