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All About Plants

All About Plants. An Explanation of Why Plants Do What They Do. Photosynthesis. Photosynthesis is a way for plants to interact with the environment by exchanging gases and nutrients to produce energy. Capturing the Sun’s Energy. Chloroplasts absorb light for photosynthesis.

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All About Plants

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  1. All About Plants An Explanation of Why Plants Do What They Do

  2. Photosynthesis Photosynthesis is a way for plants to interact with the environment by exchanging gases and nutrients to produce energy.

  3. Capturing the Sun’s Energy Chloroplasts absorb light for photosynthesis

  4. Gas Exchange • Carbon dioxide enters the plant through small openings in the leaves called Stomata. Singular-stoma

  5. Stoma

  6. Glucose • Some is… • Used for energy • Used for storage • Used for making cellulose (fiber)

  7. Glucose

  8. What happens to the oxygen? The oxygen from plants allows other organisms to breathe and is used for Cellular Respiration.

  9. What Is an Autotroph? • Produce their own food (aka Producers.

  10. What Is a Heterotroph? • A heterotroph is an organism that cannot produce its own food. • They are also called “consumers.”

  11. Algae do photosynthesis but lack the parts that common plants have. They can be simple single celled organisms or multicellular. Algae

  12. Non-Vascular Plants Absorb water from their environment. They do not have roots. They typically grow in wet, or moist climates

  13. Non-Vascular Plants Moss

  14. Oldest Plants • The oldest plants on the Earth were simple plants made of one cell like algae. • These still exist today.

  15. Vascular Plants • Vascular Plants have roots and stems.

  16. Types of Vascular Plants • Either they make seeds or they don’t. • Seed Plants and Seedless Plants

  17. Seed Plants (Vascular) • Seed Plants either flower or they don’t. • This one flowers • Angiosperms

  18. Seeds • Cotyledons store food for the seed (advantage)

  19. Angiosperms (Fruits and Flowers) • Fruits and Flowers

  20. Non-Flowering Seed Plants • Gymnosperms ( cones)

  21. Birds and Bees • Move pollen • Stimulates growth

  22. Sexual Reproduction • Male and female partscombine genetic information. • Leads to diversity (advantage).

  23. Parts of a Flower • Stamen-male part • Pistil-female part • Anthers release pollen • Pollen goes down stigma and forms pollen tube to ovule • Fertilization

  24. Ovule Fertilized • Ovary becomes fruit. • Seed dispersion.

  25. Asexual Reproduction • Spider Plants

  26. Food Web

  27. The End

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