Bellwork: Label the parts of the flower.

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Presentation transcript:

Bellwork: Label the parts of the flower. 7 4 1 2 6 5 3

Plant Notecards 4th and 5th Periods Due Friday (3/9/15) Anther Petal Stigma Cellular Respiration Phloem Stoma Photosynthesis Style Filament Phototropism Thigmotropism Flower Pistil Transpiration Germination Pollen Xylem Glucose Pollination Gravitropism Roots Hydrotropism Sepal Leaf Stamen Ovary Stem

Plant Transport Notes in your I.A.N. Page 63

Transport System Essential Question: How does a plant use the transport system to maintain homeostasis?

Remember: Plant Parts/Systems Reproductive System = Flower (with male and female parts) Transport System = tissues in stem Nutrient System = Leaf + Root Structural Support System = Stem + Roots All of these parts and systems work together to help a plant maintain homeostasis.

What is the structural support system made of?

Roots Hold plant in position Absorb water and minerals from the soil Specialized cells to increase surface area for water intake

Wheat seed Root hairs Fragile parts of cells that grow from the main root They massively increase the surface area for absorption

Stems: - are supporting structures that connect and carry water and nutrients between the roots and leaves

What is the transport system made of?

Vascular tissue: specialized tissue used to move water and nutrients throughout a plant.

Xylem: carries water upward from the roots to every part of the plant Xylem: carries water upward from the roots to every part of the plant. Phloem: transports food (nutrients) produced by photosynthesis.

How are the parts of a leaf related to their function?

Leaves are organs that perform photosynthesis and contain one or more bundles of vascular tissue.

Cuticle: a thick waxy layer on the top of the leaf that protects the leaf against water loss and injury.

Gas exchange Leaves are designed to allow carbon dioxide to get to the main chlorophyll layer at the top of the leaf They have small holes called stomata on the under surface Each hole is open & closed by 2 guard cells

Stomata: openings in the underside of the leaf that allow carbon dioxide and oxygen to diffuse (move) into and out of the leaf. Guard cells: specialized cells in the epidermis that control the opening and closing of stomata.

Stoma is a small hole Its size is controlled by 2 guard cells closed open

Stoma function is for gas exchange in the leaf oxygen Guard cell Provided plant is photosynthesising Carbon dioxide

Why would a plant open and close its stomata?

Transpiration is the loss of water through leaves.

Osmotic pressure keeps a plant’s leaves and stems rigid Osmotic pressure keeps a plant’s leaves and stems rigid. Wilting results from the lack of water—and therefore of the pressure in a plant’s cells.

Mix-Freeze-Group 2 3 4 5 Guard Cell Phloem Xylem Transpiration I am the vascular tissue that transports nutrients through the plant. I am the structure around the stomata that allows gases to enter and exit the leaf. I am the process during which water is lost through the leaves. I am the vascular tissue that transports water throughout the plant.

Celery DEMONSTRATION!