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Lecture 7 Movement across membranes Dr. Angelika Stollewerk

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

By bernad
(250 views)

Diffusion Osmosis Lab

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.

By benjamin
(635 views)

WATER RELATIONS (Chapter 6)

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 )

By rune
(797 views)

AP Lab 4: Osmosis and Diffusion

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.

By marinel
(231 views)

Halophytic Plants

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)

By libitha
(2836 views)

Cell Membranes and Cell Transport

Cell Membranes and Cell Transport

Cell Membranes and Cell Transport. Cell (plasma) membranes perform three general functions: Isolate the cell’s contents from the external environment Regulate the exchange of essential substances btw cell and environment Communicate with other cells.

By jenn
(526 views)

Chapter 36

Chapter 36

Chapter 36. Transport in Vascular Plants 維管植物的運輸. Overview: Pathways for Survival of vascular plant ( 維管植物存活途徑 ) For vascular plants, the evolutionary journey ( 演化之旅 ) onto land involved the differentiation of the plant body into roots and shoots ( 植物體分化為根與枝條 )

By barb
(509 views)

Ch. 36 Warm-Up

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?

By hieu
(165 views)

Ultrafiltration

Ultrafiltration

Ultrafiltration. Learning Objective: To Know The Function Of The Bowman’s Capsule. Spec.

By tucker
(341 views)

Osmosis

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.

By keola
(288 views)

Lecture 8 – Viscoelasticity and Deformation

Lecture 8 – Viscoelasticity and Deformation

Lecture 8 – Viscoelasticity and Deformation. Deformation due to applied forces varies widely among different biomaterials Depends on many factors Rate of applied force Previous loading Moisture content Biomaterial composition. Lecture 8 – Viscoelasticity and Deformation.

By dillian
(287 views)

Water potential

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 .

By maire
(177 views)

Cell Membrane and the Movement across it!

Cell Membrane and the Movement across it!

Cell Membrane and the Movement across it!. Cell Membrane…more than just a barrier!. Cell (plasma) membrane. Cells need an inside & an outside… separate cell from its environment cell membrane is the boundary. Can it be an impenetrable boundary?. NO!. OUT waste ammonia salts CO 2

By gypsy
(358 views)

WATER TRANSPORT IN PLANTS

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.

By yoshino
(135 views)

AP Biology Information

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

By tirzah
(163 views)

First you must review Water Potential on the next however many slides…

First you must review Water Potential on the next however many slides…

Lab 4: Diffusion and Osmosis. First you must review Water Potential on the next however many slides…. Chapter 36 – Plant form and function. AIM: Describe the process of passive transport (diffusion across the membrane). PROBLEM – What about physical pressure? . physical pressure.

By fauve
(132 views)

Water Water Water Potential

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.

By eilis
(176 views)

9.2 Transport in angiospermophytes

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.

By dalila
(156 views)

Different Mechanisms Transport Substances over Long and Short Distances

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

By awena
(102 views)

Biology Presentation

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.

By tanaya
(146 views)

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