Download Phylum Tracheophyta: Class Filicinae

Phylum Tracheophyta: Class Filicinae
Ferns
Name ______________________
Date _____________________
Block ________________
Try This…
1. What is the dominant stage in the moss life cycle?.
_________________________________________
2. What does the term Alternation of Generation mean?
_____________________________________________________________________________
_____________________________________________
2. Is the sporophyte haploid or diploid?
________________________________________
3. How do moss move water around the plant?
_________________________________________
4. Does moss have leaves and roots?
__________________________________________________________
PhylumTracheophyta: Class Filicinae - Ferns
Ferns were among the first multicellular organisms to move onto land

In order to live on land ferns had to solve the problems that life on land presented.
Problems Faced By Plants That Live On Land
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Require a constant __________________supply
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Land plants need to obtain water and then
from
via evaporation
the water they obtain

Require rigid support to hold leaves up to the sun
 The process of _________________________ requires
__________________ in the form of _______________
 Photosynthesis is carried out in the __________

Need to exchange ______________ with the environment
Plants need to
and ____________________
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 Plants need to avoid water loss when they exchange gases with the environment

Need to be able to _____________ in an environment that lacks water
Unifying Characteristics of Ferns
Ferns developed _________________________
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Two types of vascular tissue
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______________ – transports water from the roots to all parts of the plant
______________ – transports nutrients and products of photosynthesis to all parts of
the plant
Characteristics That Unify Ferns

With the development of vascular tissue ferns evolved ____________________
 Ferns obtain a constant supply of ____________ with true roots

Have _____________ which are underground stems
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With the development of vascular tissue ferns evolved true _____________ called
______________
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Fronds are photosynthetic and contain one or more bundles of vascular tissue gathered
into _______________
One important type of cell present in vascular tissue is the ___________
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Tracheid cells carry water from the roots in the soil to the leaves in the air
Tracheid cells have _________________ that strengthen stems and help plants
stand up
Leaves of ferns have a waxy covering called a ___________

The cuticle helps prevent ___________ by evaporation
Alternation of Generations in Ferns
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Fern sporophytes produce _______________ on the underside of their _____________

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Spores are produced in tiny containers called ___________________
Sporangia are grouped into large clusters called __________________ (singular:sorus)
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Spores are released from the sporangia and are carried by ____________________
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Spores eventually land, and if environmental conditions are right the spore begins to ____
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Spores develop into haploid ______________________
The gametophyte develops rhizoids that flatten out into a heart-shaped structure called the
_____________
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______________________and ___________________ are the male and female parts
which produce _____________________
When the antheridia mature, _____________________ are released
Fertilization still _________________________

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Gametes (sperm and eggs) are found on the underside of the prothallium
ferns grow in moist environments because the sperm need to swim to the eggs
The zygote that forms from fertilization starts to grow into a new _________________ plant

As the sporophyte grows, it puts out its rhizomes and fronds

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the gametophyte withers away
The sporopyte stage is the __________________ stage
 The sporophyte can live for ___________________
Try This…
1. What is the dominant stage of the fern life cycle? The moss?
Fern ________________________________
Moss ________________________________
2. Why do ferns need to live in a moist environment?
_______________________________________________________________
3. How do ferns accomplish gas exchange without losing too much water?
_______________________________________________________________
4. How do Ferns move water around the plant? Nutrients?
_______________________________________________________________
5. Where does photosynthesis occur? How do the products of photosynthesis move around the plant?
__________________________________________________________________________
______________________________________________________________
6. Which Fern generation is haploid? Diploid?
Haploid?_________________________________________________________
Diploid? _________________________________________________________