'Water potential' diaporamas de présentation

Chapter 36

Chapter 36. Transport in Vascular Plants ???????. Overview: Pathways for Survival of vascular plant ( ???????? ) For vascular plants, the evolutionary journey ( ???? ) onto land involved the differentiation of the plant body into roots and shoots ( ?????????? )

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WATER RELATIONS (Chapter 6)

WATER RELATIONS (Chapter 6). Terrestrial. Terrestrial. Fig. 6.20 in Molles 2013. Terrestrial. Fig. 6.1, 6.8 in Molles 2013. Aquatic. Aquatic. Figs. 6.27, 6.28 in Molles 2013. 23 o C. 23 o C. Water Saturation of Air. Saturation Water Vapor Density (g/m 3 )

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Lecture 7 Movement across membranes Dr. Angelika Stollewerk

Chapters 5 & 35. Lecture 7 Movement across membranes Dr. Angelika Stollewerk. Movement across membranes. Aims: To understand the process of diffusion To understand the process of osmosis. Movement across membranes. Aims: To understand the process of diffusion

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Cell Membrane and the Movement across it!

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Diffusion Osmosis Lab

Diffusion Osmosis Lab. Osmosis. Osmosis = the movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane. Osmosis is considered in terms of water potential and solute potential. Water Potential.

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Ch. 36 Warm-Up

Ch. 36 Warm-Up. Describe the process of how H 2 O gets into the plant and up to the leaves. Compare and contrast apoplastic flow to symplastic flow . Explain the mass flow of materials in the phloem (source to sink). Ch. 36 Warm-Up. What is transpiration? What are mycorrhizae?

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9.2 Transport in angiospermophytes

9.2 Transport in angiospermophytes. Assessment Statements. 9.2.1 Outline how the root system provides a large surface area for mineral ion and water uptake by means of branching and root hairs. 9.2.2 List ways in which mineral ions in the soil move to the root.

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Biology Presentation

Biology Presentation . Okan Atilan. Water Uptake in Plants. Root Hair Cells. They cover the part of the root that absorb water. They increases the surface area and hence, speeds up water uptake. When water is absorbed, it has to through the cortex and the endodermis, to reach the xylem.

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Halophytic Plants

Halophytic Plants. Biology 561 Barrier Island Ecology. Niceties. 80% of the earth is covered by saline water Very few plants are able to tolerate saline conditions without serious damage Plants that survive in saline environments are termed halophytes (c.f., glycophytes)

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Water Water Water Potential

Water Water Water Potential . What are you water potential?. M easures the tendency of water to leave one place in favor of another Measured in bars High water potential = water molecules can easily move about Low water potential = water molecules cannot easily move about. Water Potential.

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Ultrafiltration

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Cell Membranes and Cell Transport

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WATER TRANSPORT IN PLANTS

WATER TRANSPORT IN PLANTS. An Overview of Transport in Plants. Transport Occurs on 3 Levels. Uptake of water and loss of water and solutes by cells. Aquaporins assist water transport.

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Different Mechanisms Transport Substances over Long and Short Distances

Different Mechanisms Transport Substances over Long and Short Distances. Concept 36.2 Mira Patel. Transport Continuums. APO plast. SYM plast. Cytosol Includes the plasmodesmata , and the cytoplasmic channels that interconnect them . External to the plasma membrane

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AP Lab 4: Osmosis and Diffusion

AP Lab 4: Osmosis and Diffusion. Purpose. 1. Investigate processes of diffusion and osmosis in a model membrane system, and 2. Investigate effect of solute concentration on water potential as it relates to living plant tissues. Key Concepts.

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AP Biology Information

AP Biology Information. Teacher: Katrina Taylor BS in Cell and Developmental Biology Published Scientist- Studied protein interaction in immune and cancer cells Working on Masters Degree in Molecular Biology. Prerequisites. A or B in Honors Chemistry and Biology or

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Osmosis

Osmosis. Osmosis is the net movement of water molecules over a partially permeable membrane from an area of less osmotic potential to an area of more negative osmotic potential. . Water potential.

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Water potential

Water potential . Water potential = solute potential + pressure potential. Pressure potential . A force that resists water flow due to a container (cell) being full and not wanting to expand any more. Cell walls of plant cells are important in this regard. Solute potential .

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