1. Unit 13A - Plant Systems On the following slides, the green sections are the most important – Underlined words = vocabulary! Hyperlinks are shown in purple. Background Image

2. o The Texas Bluebonnet (Lupinus texensis) is our state flower and a plant native to Texas. o Remember that plants are NOT dead, but very much alive and composed of eukaryotic cells! o In this unit we will discuss the systems in plants, specifically transport, reproduction, and response. Introduction Image

3. o Plants have cell differentiation (different cell types perform specific functions). o EX Root cells, stem cells, and flower petal cells all have specific functions (jobs) that they carry out for the plant. o AKA Cell Specialization Cell Differentiation http://lifescitpjhs.wikispaces.com/file/view/DifferentiationPlant.png/301427382/ DifferentiationPlant.png

4. o Pick up one sheet of colored paper and the foldable direction sheet. Setting Up the Foldable http://4.bp.blogspot.com/- OcypJ_SmoLo/Tjgu979aWiI/AAAAAAAAAkw/SUBn76m3xgs/s1600/classr oom%2Bideas%2B001.JPG

5. o Step 1 - Glue in the Root diagram! o Roots are specialized underground organs that absorb water and minerals necessary for the plant and anchor [hold] the plant in the soil and help to prevent soil erosion. o tap root – (ex: carrot) single large central root o fibrous root – (ex: grasses) clump of short threadlike divisions Absorption via Roots http://www.kidsgardening.com/onlinecourse/Diagrams/c5/c5-1root.gif

6. o Stems are specialized tissues that support leaves to hold them up to sun, and transport water, sugars, and nutrients through the plant. o Some stems are also modified for glucose [sugar] storage areas. o Video Video Transportion via Stems http://www.arboretum.fullerton.edu/grow/images/plant_organs.jpg

7. o Just like in animals, vascular tissues transport materials for plants. o Xylem – transports H 2 0 (L sound for “liquid”) via hydrogen bonding in stacked cells to form straw-like drinking tubes; movement is up from roots to leaves o Phloem – transports glucose; movement can be up and down Transport Cont. http://3.bp.blogspot.com/_b8o0_bDa4QI/RsKvBY5ZufI/AAAAAAA AAF0/BmCafNOYe6A/s400/xylem1%5B1%5D.gif

8. o Step 1 - Glue in the stoma diagram! o Leaves are the tissues where most photosynthesis, and transpiration [evaporation from plants] occurs. o Veins run through the leaves, transport water, glucose, minerals, etc. to the plant cells Photosynthesis via Leaves http://www.ecomagic.org/fruition/leaves-1.jpg

9. o Stomata are openings in leaf tissue, much like the pores in our skin, used for gas exchange. o Guard cells control the opening and closing of stoma; the cells surround the opening contain numerous mitochondria for energy conversion Photosynthesis Cont. http://evolution.berkeley.edu/evolibrary/images/inte rviews/stoma_diagram.gif

10. http://mips.helmholtz- muenchen.de/plant/static/images/blumeninschwabenArabidopsisTha liana.jpg Stomata in Arabidopsis thaliana. Image

11. o Step 1 - Glue in the flower diagram! o Flowers are a reproductive organ (not all plants have flowers) with male and female parts. o pollination – transporting pollen (male sperm) to female part (ovule) o fertilization – union of sperm with egg (creates a development of a plant embryo [seed] which grows into a mature plant). Reproduction via Flowers http://www.prairiefrontier.com/pages/families/flwrparts.jpg

12. o Male o Stamen – consist of the anther (produces pollen) and filament (supports anther) o Pollen – contains sperm o Female o Pistil – consists of the stigma, (where pollen lands), style, (connects stigma to ovary), and the ovule (develops into the fruit) o Ovule – develops into an egg, eventually becomes the seed when fertilized o Non-sexual o Petals – colored parts, attract pollinators (EX bees) o Sepals – green parts, protect flower parts Flowers Cont.

13. Flower Flower Cont. Flower http://www.microscopy-uk.org.uk/mag/artoct08/bj-peru.html

14. o Step 1 - Glue in the fruit diagram in your physical notebook or embed in your digital notebook! o Fruits develop from a flower’s female reproductive structure(s), and contain the seed(s) o provide a means to spread and disperse the seed(s) and/or as a food source [rich in nutrients] for the germinating seed. o EX fleshy fruit like strawberries, apples, tomato, o EX dry fruit AKA drupes like almonds Reproductive Tissues - Fruit http://visual.merriam-webster.com/images/food- kitchen/food/fruits/tropical-fruits_4.jpg

15. o Seed Plants form seeds (a plant embryo surrounded by a food supply) in order to reproduce. o Seeds are encased in a protective covering called a seed coat. o Video Video Reproductive Tissues – Seeds http://asm.wku.edu/courses/Biol115/Wyatt/Plants/ seeds/seed.gif http://urbanext.illinois.edu/gpe/imag es_rev/seed-pics.jpg