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Kingdom Plantae
Taxonomy and Reproductive Questions
41
Biology
Undergraduate 1
10/21/2008

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Cards

Term
Plants evolved how many years ago in aquatic environments?
Definition
460 mya
Term
Land plants evolved how many years ago?
Definition
440 mya
Term
How many extant species are there in the plant kingdom?
Definition
263,000
Term
What percent of extant species are angiosperms?
Definition
89%
Term
Def: The opening in the leaves of plants.
Definition
Stomata
Term
def:The waxy coat on plants that prevent dessication.
Definition
Cuticle
Term
Multicellular sex organs are called ________.
Definition
Gametangia
Term
The male gametangium is called ________.
Definition
Antheridium
Term
The female gametangium is called the ________.
Definition
Archegonium
Term
Name the 4 Major groups of plants.
Definition
Non vascular seedless
vascular seedless
vascular naked seed
vascular protected seed
Term
Bryophytes (the oldest of plants) include _______.
Definition
hornworts, liverworts, mosses
Term
In vascular plants, what does the phloem and xylem transport?
Definition
water and nutrients
Term
How does non vascular plants transport water and nutrients?
Definition
through diffusion
Term
What is lignin and why is it important?
Definition
Its a part of the cell wall and provides strength.
Term
Seedless plants that produce 2 different types of spores.
Definition
Heterosporus plants
Term
The complete body of a plant is considered a ___________.
Definition
Sporophyte
Term
A sporophyte is __________.
Definition
diploid
Term
Megasporangium is considered the ________ part and houses the ________.
Definition
female / egg
Term
Microsporangium is considered the _________ and houses the _________.
Definition
male / sperm
Term
Which generation produces the gametes?
Definition
the haploid generation
Term
Do spores grow into sporophytes or gametophytes?
Definition
Gametophytes
Term
What do zygotes grow into?
Definition
sporophytes
Term
[image]
Definition
The Hepaticophyta Life Cycle
Term
[image]
Definition
The Phylum Bryophyta Life Cycle
Term
def: the small embryonic plant enclosed in a coat with food sometimes surrounding it
Definition
seed
Term
What are the four parts of a flower?
Definition
Sepal, petal, stamen, carpel
Term
What is the male part of a flower?
Definition
Stamen
Term
What is the female part of a flower?
Definition
Carpel
Term
What are the parts of the male portion of a flower?
Definition
Anther, filament
Term
What are the parts of the female portion of the flower?
Definition
Ovary, Style, Stigma
Term
def: when two sperm from the male fuses with two eggs from the female to form a zygote and an endosperm
Definition
double fertilization
Term
In what two phyla do you see double fertilization?
Definition
Gnetophyta and Magnoliophyta
Term
These two phyla are dioecious
Definition
Cycadophyta and Ginkgophyta
Term
This phylum is facing possible extinction because it is so popular as house plants.
Definition
Cycadophyta
Term
This Asian native phylum wouldn't exist if it wasn't cultivated.
Definition
Ginkgophyta
Term
The extracts from this phylum are said to improve brain function by increasing blood flow.
Definition
Ginkgophyta
Term
What are the 3 reasons that scientist believe the phylum gnetophyta is a transitioning phylum in between gymnosperms and angiosperms?
Definition
special water-conducting cells (vessel elements) are present in this phylum and angiosperms, the cone clusters resemble flower clusters, and double fertilization occurs
Term
This phylum includes conifers
Definition
Pinophyta
Term
All of our major food crops come from this flowering phylum
Definition
Magnoliophyta
Term
What are the 5 unique features of angiosperms?
Definition
Fruit, Vessel elements, Sieve Tube elements, Flowers, Double Fertilization
Term
What is an imperfect flower?
Definition
A flower that doesn't have both a stamen and pistil.
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