'High water potential' diaporamas de présentation

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Chapter 36

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Transpiration Lab

Transpiration Lab. Lab 11. http://www.cleanvideosearch.com/media/action/yt/watch?v=FEfmTok3OCo. Background. Cells and organisms must exchange matter with the environment to grow, reproduce, and maintain organization, and the availability of resources influences responses and activities.

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Plant water relations

Plant water relations. Douglas R. Cobos, Ph.D. Decagon Devices and Washington State University. Plants fundamental dilemma . Biochemistry requires a highly hydrated environment (> -3 MPa ) Atmospheric environment provides CO 2 and light but is dry (-100 MPa ). Water potential.

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Transport in Plants

Transport in Plants. Chapter 36. I) Transport at the Cellular Level. A) Selective Permeability 1) Diffusion : movement from [high] to [low] 2) Passive transport : movement without the use of ATP.

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Transport in Plants

Transport in Plants. Three levels: at cellular level lateral transport (short-distance) whole plant (long distance). Transport in Plants. Cellular Level: Diffusion movement from an area of high concentration to an area of lower concentration Active transport. Transport in Plants.

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Plants

Plants. Ch. 29-30, 35-39. Ancestors to Land Plants . Charophyte algae seem to most closely resemble land plants because both charophytes and land plants have: Similar shaped proteins in the cell membrane (rosette shaped) while noncharophyte algae have linear shapes

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Cell Membranes and Transport

Cell Membranes and Transport. What is going on in this picture?. Phospholipids. Phospholipids. Fatty acid chains A phosphate group Glycerol backbone. Polar heads Nonpolar fatty acids. The Fluid Mosaic Model. Fluid Mosaic Model. Transports: Small molecules Between the phospholipids

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Transport in Living Things

Transport in Living Things. Chapter 25 Chapter 25.5 Transport System in Flowering Plants. What did we learn?. Gaseous exchange in the lungs. Movement of substances. Transport of water into roots. Passive process. Diffusion. Active process. Osmosis.

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F214: Communication, Homeostasis and Energy 4.2.1 Ultrafiltration and Selective Reabsorption

F214: Communication, Homeostasis and Energy 4.2.1 Ultrafiltration and Selective Reabsorption. describe and explain the production of urine, with reference to the processes of ultrafiltration and selective reabsorption;

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The cell membrane

The cell membrane. Cell Membrane. Regulates what enters and leaves the cell Provides protection Provides support Fluid mosaic model Phospholipid bilayer Carbohydrates Proteins. Click to watch video . Transport through cell membranes.

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Osmosis

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(transpiration continued)

(transpiration continued). transpiration. Evaporation of water at the surface of the mesophyll cells followed by the loss of water vapor from plant leaves through the stomata. Water vapor loss . Cell surface: walls of mesophyll wet Water evaporates from these wet walls Air space:

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Osmotic potential

Osmotic potential. Occurs in plant cells due to the cell wall (and fungi somewhat). The movement in and out of an animal cell is driven by the relative solute concentration gradient (after obeying the electrochemical gradient) Animal cells may swell, burst, or may crenate

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AP Bio Lab 1

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AP Bio Water Potential

AP Bio Water Potential. Water potential measures the tendency of water to leave one place in favor of another Water will always move from an area of high water potential to low water potential Water potential= pressure potential + solute potential. What effects water potential.

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2.4.3 Osmosis

2.4.3 Osmosis. Osmosis . Movement of water molecules from a high concentrated area (dilute solution) to a low concentrated area (concentrated solution) through a semi permeable membrane. It is diffusion of water. Protein molecule. Water molecule. Semi permeable membrane. Outside the leaf.

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