Introduction to Plants
Make a list of five plants you might eat during a typical day
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Which part of the plant are you eating when you eat that plant?
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Brainstorm a list of products you use that originate from plants…….
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Plants differ from Algae
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All plants are Click here to enter text. and develop tissues
Why are plants so important?
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Photosynthesis: Take in Click here to enter text. and release Click here to enter text..
Characteristics of Plants
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Many Click here to enter text.
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Most contain Click here to enter text.
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Cell Click here to enter text.
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Most have Click here to enter text. or root-like structure
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Click here to enter text. cells
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Created to live in many different environments
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285,000+ Click here to enter text.
Adaptations for Land Life
1. Protection and support
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Cell walls made of Click here to enter text.
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Provide Click here to enter text. and Click here to enter text.
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Click here to enter text. are a waxy protective layer that also keep plants from drying
out
2. Reproduction
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Most land plants do not rely on Click here to enter text. in order to reproduce
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Two stages of reproduction:
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Click here to enter text. = plants make spores
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Gametophytes = plants that grow from Click here to enter text.
Classification
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Classified into major Click here to enter text. (phyla)
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VASCULAR vs. Click here to enter text.
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Nonvascular plants do not have special Click here to enter text. to move water and nutrients
through the plant
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They rely on Click here to enter text.
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Small plants
Divisions
Seedless & Seed Plants
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Bryophyta - nonvascular plants
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Class Musci - the mosses
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Pterophyta - ferns, seedless plants
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Spenophyta – horsetails and scouring rushes
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Ginkgophyta – ginkgos
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Cycadophyta – cycads
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Gnetophyta – gnetums
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Lycophyta – club mosses
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Coniferophyta - cone-forming seed plants
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Anthophyta - fruit-forming seed plants (Angiosperms)
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Class Monocotyledonae - plants with one seed leaf
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Class Dicotyledonae - plants with two seed leaves
Seedless Plants
Seedless Nonvascular
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Simple plants
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Few Click here to enter text. thick
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No Click here to enter text.
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No Click here to enter text.
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No Click here to enter text.
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No Click here to enter text.
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Grow from Click here to enter text.
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Mosses and Liverworts
Mosses
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Simple Click here to enter text. plant with leaf-like growths in a spiral around a stalk
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Click here to enter text. = root-like threads made of a few long cells
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Osmosis
Liverworts
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“Click here to enter text. for the liver”
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Rhizoid made of Click here to enter text. cell
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Like mosses, grow in Click here to enter text. areas
Moss Life Cycle
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Alternation of Click here to enter text. = continuous cycle which alternates between
spore and sex cell producing phases
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Moss appears as soft Click here to enter text. carpet
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Click here to enter text. = sex-cell producing structure
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May produce male, female, or both
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Via water, male sperm splashed onto female part and swims to eggs
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Fertilized egg develops into Click here to enter text. (diploid) that will grow into the
sporophyte
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Click here to enter text. = spore-producing stage
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Stalk and Click here to enter text.
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Capsule will release Click here to enter text. – haploid
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Spores Click here to enter text. into threadlike structure
Importance
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Click here to enter text. species
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1st to grow in new or disturbed areas
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Click here to enter text. of rocks
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Formation of Click here to enter text.
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Build up Click here to enter text. plant materials to provide nutrients
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Pave the way for other Click here to enter text.
Seedless Vascular
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Have Click here to enter text. tissue
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Produce Click here to enter text.
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Tube like vascular tissue to carry Click here to enter text., minerals, and Click here to enter
text. throughout plant
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Club mosses, spike mosses, horsetails, ferns
Club and Spike Mosses
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Produce spores at end of Click here to enter text.
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Click here to enter text. used for décor
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Resurrection Plant
Horsetails
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Click here to enter text. stem
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“scouring rush”
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Used by pioneers to scour pots and pans (silica)
Ferns
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Largest group in Click here to enter text.
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Produce spores in Click here to enter text. on back of leaves
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Click here to enter text. is formed from plant build up over long period of time
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Click here to enter text. = Spongy wet ground of slowly decaying plants = Peat fuel
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Bryophytes and ferns
Fern Life Cycle
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Click here to enter text. = underground stem
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FROND = Click here to enter text. of a fern
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SORI = Click here to enter text. cases
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Spores released to damp soil will germinate into heart shaped gametophyte plants = Click
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This will produce Click here to enter text. cells to form a zygote
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Sporophyte and Click here to enter text. can survive on their own
Importance
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House plants
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Prevent soil Click here to enter text.
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Some are Click here to enter text.
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Horsetails:
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Click here to enter text. supplements
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Shampoos
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Skin-care products