Gametophyte-sporophyte relationships in different plant groups.
Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its...
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Transcript of Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its...
![Page 1: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/1.jpg)
Classification of Plants
![Page 2: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/2.jpg)
The Plant Life Cycle
•A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is usually larger and is what you see when you look at most plants.
![Page 3: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/3.jpg)
•Diploid = full number of chromosomes
•In humans, our diploid number is. . . .
•46
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The Plant Life Cycle
•The GAMETOPHYTE or haploid phase (n) is the dominant phase in mosses. In most other plants it is very small and is actually part of the sporophyte plant.
![Page 6: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/6.jpg)
•Haploid = half the normal number of chromosomes
•In humans, our haploid number is. . .
•23.
![Page 7: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/7.jpg)
Gametophyte
Sporophyte
![Page 8: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/8.jpg)
Phylum Bryophyta—Non Vascular Plants
Examples: Mosses,
Liverworts and
Hornworts
![Page 9: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/9.jpg)
Liverwort
Hornwort
![Page 10: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/10.jpg)
Phylum Bryophyta•1. Life Cycle: GAMETOPHYTE is the dominant form
•2. Reproduction occurs in WATER; must live in WET environments
![Page 11: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/11.jpg)
Phylum Bryophyta
•3. No vascular tissue (transport system for water and nutrients); no true ROOTS, STEMS or LEAVES. Obtain water through OSMOSIS
•4. Less than a few CM tall.
![Page 12: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/12.jpg)
Phylum PteridophytaSimple Vascular Plants
Examples: Ferns and Horsetails
![Page 13: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/13.jpg)
Phylum Pteridophyta•1. Life Cycle: SPOROPHYTE is the dominant form
•2. Contain VASCULAR tissue—plants can become LARGER and more complex
![Page 14: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/14.jpg)
•3. True ROOTS, STEMS and LEAVES
•4. Sexual reproduction requires water for the SPERM to swim to the EGG
Phylum Pteridophyta
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The remaining 2 phyla are called seed plants because
they use seeds for reproduction
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POLLEN
• Seed plants store SPERM in POLLEN.
• How does pollen travel?• How is this different from the
non-vascular and simple vascular plants?
![Page 17: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/17.jpg)
Phylum ConiferophytaGymnosperms (Cone Bearers)
Examples: Pine Tree,
Cedar
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Phylum Coniferophyta•1. Life Cycle: SPOROPHYTE is the dominant form
•2. Contain VASCULAR tissue
![Page 19: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/19.jpg)
•3. Reproduction depends on SEEDS that are stored in CONES.
•4. Leaves are NEEDLE LIKE
Phylum Coniferophyta
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Phylum AnthophytaAngiosperms
(Flowering Plants)Examples: Wildflowers, Oak Tree
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Phylum Anthophyta•1. Life Cycle: SPOROPHYTE is the dominant form
•2. Contain VASCULAR tissue
![Page 22: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/22.jpg)
•3. Have FLOWERS that aid in reproduction and have allowed them to spread to almost every BIOME
•4. Leaves are BROAD and FLAT
Phylum Anthophyta
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•5. There are 2 groups: MONOCOTS and DICOTS.
•Monocot = 1 seed leaf•Dicot = 2 seed leaves
Phylum Anthophyta
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The leaves of monocots
have parallel veins
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The leaves of
dicots have net
or branched
veins
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Which Phylum?
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Which Phylum?
![Page 29: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/29.jpg)
Which Phylum?
![Page 30: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/30.jpg)
Which Phylum?
![Page 31: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/31.jpg)
NAME THAT PLANT• Identify each of the following as
a:– Non-Vascular Plant– Simple Vascular Plant– Gymnosperm– Angiosperm
• If it is an angiosperm, also identify it as a monocot or dicot.
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Peat Moss
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FERN
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POST OAK TREE
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CEDAR
![Page 39: Classification of Plants. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfb71a28abf838c9e88a/html5/thumbnails/39.jpg)
BLUEBONNET
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LILY
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JUNIPER