'Lower water potential' presentation slideshows

Chapter 3 The Prokaryotes

Chapter 3 The Prokaryotes. Chapter Outline. 3.1 Bacteria 3.2 Actinomycetes 3.3 Cyanobacteria 3.4 Archaeobacteria 3.5 Other prokaryotes 3.6 Classification of bacteria. Concepts.

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Movement of Substances

Movement of Substances. What you need to know. What is diffusion? What is osmosis? How is active transport different from diffusion? What causes the movement of substances? How does the permeability of the membranes affect the movement of substances?

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Transport in Flowering Plants

Transport in Flowering Plants. Vascular Bundle. Consists mainly of Xylem Phloem Referred to as vascular bundles in stems and steles in roots. TS of the Stele of a Root. Structure of Xylem Vessels. Structure of Xylem Vessels. Xylem.

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Circulatory System of a Mammal

Circulatory System of a Mammal. The Blood System. The general pattern of blood circulation in a mammal. Names are required only of the coronary arteries and of blood vessels entering and leaving the heart, liver and kidneys.

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Water and its relationship with plants

Water and its relationship with plants. Review definitions. Diffusion Osmosis Plasmolysis Imbibition. Some new definitions. Active transport : movement of a substance against a diffusion or electrical gradient through the expenditure of energy P roton pump in plants

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Transpiration

Transpiration. Transpiration is the major mechanism that drives the movement of water through a plant. In the first section of this laboratory you will investigate factors that influence the rate of transpiration. In the second section you will study plant anatomy as it relates to transport.

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Transpiration

Transpiration. Transpiration is the major mechanism that drives the movement of water through a plant. In the first section of this laboratory you will investigate factors that influence the rate of transpiration. In the second section you will study plant anatomy as it relates to transport.

322 views • 28 slides

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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Membrane Structure and Function

Membrane Structure and Function. Chapter 7. Plasma Membrane. The boundary that separates the living cell from its nonliving surroundings. Surrounds the cell and controls chemical traffic into and out of the cell.

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What is Water Potential?

What is Water Potential?. Water potential. the force responsible for movement of water in a system Has the symbol psi Is measured in bars or megapascals. It is a measure of the free energy of water which is less when it is has to surround solutes. We are really stuck here, YUK!.

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Haemolysing Agents& Detection of blood

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Resource Acquisition and Transport in Vascular Plants

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Osmosis

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Movement in and out of cells

Movement in and out of cells. Movement into and out of cells. particles such as atoms , ions and molecules are always moving in and out of the cells c ells needs to take in nutrients such as glucose & amino acids c ells needs to get rid of metabolic wastes such as carbon dioxide & urea .

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Water Potential

Water Potential. The free energy per mole of water Calculated from two components: Solute potential (osmotic pressure) Pressure potential (turgor pressure). Water Potential. What is solute potential? Dependent on solute concentration Also called the osmotic potential

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Water Potential

Water Potential. Tendency of water to favor one side more than another. Predicts which way water diffuses in PLANT tissues using the Greek letter Psi. (?) Plants use water potential to transport water to the leaves so that photosynthesis can take place. Water potential in plants

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Diffusion, Osmosis & Active Transport

Diffusion, Osmosis & Active Transport. Diffusion Movement of particles From a region of higher concentration To a region of lower concentration Down a concentration gradient (no need membrane) Eg . Movement of oxygen into amoeba. Osmosis Movement of water molecules

126 views • 3 slides