CH 3 8
CH 3 8
CH 3 8
Eukaryotes
3rd part
1. Protists
2. Fungi
3. Plants
4. Animals
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1. Protists
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)Research Methodology
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• Some like Euglena & algae are Autotrophs (get food as plants)
• Some like amoeba, paramecium & mold are heterotrophs (get food as
animals)
• Many protists are motile by flagella like Euglena & some by cilia like
paramecium.
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2. Fungi
Mushrooms, molds & yeast are all in the kingdom of Fungi.
1. Cellular structure
Fungi are eukaryotes and multicellular.
2. Animal/plant confusion
Fungi are similar with algae (plants)
But also different by no really root, stem, flower.
3. Nutrition
They absorb the food from soil and don’t have photosynthesis.
They are also saprophytes(decomposer) & pathogens (cause disease).
4. Reproduction
Sexually & asexually, also contain spores to reproduce.
5. Habitat
On roots of trees, inside mammal’s, moisten places. 5
3. Plants
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1. Nonvascular seedless plants
Bryophytes which live in terrestrial deserts. Stems and roots are not fully
developed for water taking, they survive in very humid environment.
They have root like Rhizoid for water taking, a leaf & stem.
They live in humid environment, tree bark, waterfronts, on soil, rocks.
Reproduce sexually & asexually.
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2. Vascular seedless
Ferns which have vascular bundles and simple root, leave & stem are in this
group.
They live in humid and temperate places.
Subsoil stems are Rhizome.
Reproduction is sexually and asexually with spore.
They are 300 million years old and have role in formation of coal.
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3. Vascular plants
These plants reproduce flower & seed, also contain real roots, leaves and
stems. Reproduction is sexually and asexually.
After fertilization start to form a structure with embryo & food.
Ovule form seed, seed develops and matures in ovarium with the fruit.
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Differences btw Vascular & Nonvascular plants
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Structure of a seed
1. Seed coat
Surrounds and protect the seed from outside impacts, also swells with
water and than explode during germination.
2. Embryo
It is formed by the division and multiplication of zygote.
Embryo has root, stem and prophyll.
3. Endosperm
A food storage connected to embryo and supplies food for embryo.
Some like bean & chickpea don’t have it, but get food from cotyledon. 12
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Groups of vascular seeded plants
1. Gymnosperm
These plants are with naked seed, which can not produce fruit & real ovule.
Some are in the form of trees, some are bushy & some like small trees.
Flowers are gonochoristic (male cone separate from female cone).
Seed produced when pollination & fertilization develops on female flake
cone.
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2. Angiosperm
The largest group in plants & More developed than gymnosperms, usually
in the form of grassy, woody, bushy. The ovarium has ovula & ovariums,
which developed into fruit.
A flower contains stalk, sepals, petal, pistil & stamens.
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Groups of Angiosperm
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Thanks from your attention!
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