Types of Plants Flashcards
What are the four types of land plants?
bryophytes, pteridophytes, gymnosperms, angiosperms
Are bryophytes vascular or nonvasular?
nonvascular
Example of bryophytes
mosses
Bryophytes have flagellated ______ which must swim in order to reach the ___.
sperm; egg
The dominant generation of the mosses is the __________
gametophyte
Are pteridophytes seeded or seedles?
seedless
Are pteridophytes vascular or nonvascular?
vascular
Pteridophytes have true _____ with vascular tissue
roots
What is the dominant generation of pteridophytes?
Sporophyte
In order to complete their life cycle, pteridophytes must be in a ____ environment
moist
Why do pteridophytes have to live in moist environments?
Because swimming sperm must swim through water to reach the egg
Example of pteridophytes
Ferns
Are gymnosperms vascular or nonvascular?
vascular
Do gymnosperms have flowers?
no
Where do gymnosperms develop seeds?
on the surface of specialized leaves
What is a huge advantage of gymnosperms?
Pollen
Is pollen in the male or female gametophyte in gymnosperms?
male gametophyte
Why is pollen advantagous in gymnosperms?
sperm is no longer restricted to aquatic environments
Examples of gymnosperms
Evergreens, conifers
Are angiosperms vascular or nonvascular?
vascular
Do angiosperms produce flowers?
yes
What is a fruit?
a mature ovary
What is the function of fruits?
seed dispersal
Male gametophte is contained within what?
pollen grains
Female gametophytes are contained within what?
Ovules in ovaries
