Plant Form and FunctionAnalyzing how water and nutrients move through a plant

How and why do water/nutrients move through a plant?

You must know: (Ch 36) The role of passive transport, active transport, and cotransport in plant transport. The role of diffusion, active transport, and bulk flow in the movement of water and nutrients in plants (with water potential

calculations) How the transpiration cohesion-tension mechanism explains water movement in plants. How pressure flow explains translocation.

How does water & dissolved nutrients get from the roots to the leaves in these tall trees?_______________________________

How does sugar get from the leaves to the roots in plants for winter storage? ____________________________________

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What is the similarity between xylem and phloem tissue?

What is the difference between xylem and phloem tissue?

Types of Tissue

Dermal tissue – ____________________ protective covering

Vascular tissue – carries out transportation of materials between _______________and _____________

Xylem – transports _____________and dissolved minerals up from roots into the shoots

Phloem – transports _____________from leaves to other parts of plant (sites of growth)

Ground tissue – not ____________or ____________

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Explain the difference between passive transport and active transport.

Plasmolysis an effect of __________________, which is an example of _______________ transport

Vocabulary:

xylem xylem sap mycorrhizae inorganic ions apoplastic route symplastic route plasmodesmata casparian strip endodermis cells

Try This: Explain the transport of water and nutrients from roots to shoots

Transport up shoots to leaves: Transpiration through Xylem

Vocabular: transpiration hydrogen bonds cohesion adhesion solute stomata guard cells

       How do (C3) plants prevent excessive water loss in hot, dry environment?

Try This: Explain the transport of water and nutrients up shoots to leaves

How and why does sugar move through a plant?Phloem Translocation in SummerPhloem Translocation in Spring

Vocabulary:

phloem phloem sap translocation sugar source sugar sink tap root

Try This: Explain the transport of sugar from sugar source to sugar sink in spring and late summer

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Remember the equation for water potential?

Explain the equation

If the in cell A is greater than the   in cell B, which way will water move?

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Predict the effect on water potential of: Addition of solutes to distilled water Loss of turgor pressure within a plant leaf

Bulk Flow: the movement of water through a plant from regions of high pressure to regions of low pressure.  

Water and solute move through both xylem and phloem tissue by way of bulk flow

Try These Questions:Transpiration has been described as a “necessary evil.” Explain the costs and benefits of transpiration to a plant.