'Pollen tube' diaporamas de présentation

Plant Life Cycles

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Complex Plants:

Complex Plants:. Chapters 22, 23 and 25. 22-1 Seed Plants. Benefits to plants of living on land are: 1. Abundant Sunlight for Photosynthesis 2. Free movement of carbon dioxide and oxygen. Problems encountered by life on land are:. Water and nutrients available only from the soil.

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Reproduction in flowering plants

Reproduction in flowering plants. Angiosperms. Reproduction in angiosperms. The gametophytes of flowering plants only consist of a few cells and are totally dependent on the sporophyte. . Reproduction in angiosperms.

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Palynology Michael G. Simpson

Palynology Michael G. Simpson. Palynology (Gr, palynos , dust) = The study of pollen and spores Why study? Use as characters in phylogenetic analysis Use in plant identification Extant plants Fossil plants paleopalynology past plant communities, climate, biogeography, migration.

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HOW PLANTS GROW?

HOW PLANTS GROW?. TWO PHASES IN THE LIFE CYCLE OF A PLANT. 1 . VEGETATIVE STAGE - includes the growth of roots, stem and leaves. 2. REPRODUCTIVE STAGE -the development of flowers, fruits and seeds takes place. Three essential condition for germination. Amount of moisture

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Chapter 22: Plant Diversity

Chapter 22: Plant Diversity. Comparison of Water and Land as Habitats for Plants. Adaptations of Land Plants to Terrestrial Environments. Differences Between Bryophyta and Tracheophyta. A. Metaphyta : Plant Kingdom. 1. Bryophyta (Phylum)

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Plant Reproduction

Plant Reproduction. What is the difference between Sexual Reproduction and Asexual Reproduction?. Sexual requires an ovule and pollen Asexual is vegetative. What are the Female parts of the flower?. Pistil: Stigma, Style, Ovary Pollen lands on Stigma, travels down style to ovary.

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Flowering Plant Sex

Flowering Plant Sex. Carpel female parts. Stigma. Petals. Stamen male parts. Style. Anther. Ovary. Filament. Ovules. Nectaries. Sepals. Label your diagram on your worksheet. What do the parts do?. Sepals- protect the flower when it is a bud.

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Goal # 7 Plant Reproduction

Goal # 7 Plant Reproduction. I. Reproductive Organs. Flower = Plant part containing all the reproductive organs of a flower. Used in plant identification Reproductive organs are responsible for Fertilization Seed production Pollination.

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The Genetic Basis of Growth and Development

The Genetic Basis of Growth and Development. Plants are made up of. cells tissues organs. Plants have specialized tissues called meristems. Shoot apical meristem (SAM) Intercalary meristem Root apical meristem (RAM) Lateral meristems: pericycle, vascular cambium. Plants grow by cell.

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Flower Dissection Summary

Flower Dissection Summary. Sepals -protect the bud photosynthesizes for developing bud . Steps 1-3 . Petals -attract pollinators. Step 4-6. Stamen. Pistil. Stamen. Pistil. Step 7-9. Stamen -male part of the flower, is made up of: Anther -produces pollen Filament -holds anther up.

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TROPISM

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Sexual & Asexual Reproduction

Sexual & Asexual Reproduction. Pollination and Fertilization: Presentation 2 of 3. Pollination. Pollination occurs when mature pollen grains (male sex cells from the stamen) come into contact with the moist, sticky surface of a flower stigma (female flower part). . stigma.

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The Reproduction of Flowering Plants

The Reproduction of Flowering Plants. Pgs 106 - 109. How does fertilization occur?. Most plants you see outside are flowering plants. For them to reproduce, a sperm cell must reach and combine with an egg.

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Fertilisation

Fertilisation. In plants. Learning outcome. Describe the process of fertilisation in flowering plants. Starting with pollen tube growth and ending with the fusion of the nuclei. Parts of a flower. The pollen grain. Male gametes are found in pollen grains

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Angiosperms- Flowering plants

Angiosperms- Flowering plants. Key Features Produce seeds in fruit Flowers - promote pollination and fertilization Cross pollination or self pollination Fruit - protection and seed dispersal Endosperm - stored food for embryonic plant.

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What are Flowers?

What are Flowers?. Take Cornell notes in your lab notebook. Label your flower worksheet using the image below:. Male Parts of a Flower. Stamen: male reproductive organ of the flower. Parts: Filament: long stalk that supports the anther, connects to the base of the flower.

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Angiosperm Reproduction

Angiosperm Reproduction. Review: Plants are characterized by an alternation of generations. haploid (n) - gametophyte... reproduce sperm and eggs via mitosis. Fertilization results in a diploid zygote (grows into a sporophyte) diploid (2n) - sporophyte...

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