'Solute concentration' 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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Chapter 41

Chapter 41. Digestion and Human Nutrition A Summary. AP Biology Spring 2011. The Nature of Digestive Systems . A digestive system mechanically and chemically reduces food particles and molecules small enough to be absorbed into the internal environment.

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Fruits

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Cell Review

Cell Review. Diffusion & Osmosis Lab. Diffusion. Molecules are in constant, random motion Molecules move from higher concentration to lower concentration (down their concentration gradient) Meaning, they spread out Example: when the smell of a candle fills a room. Osmosis.

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Chapter 4 Movement of Molecules Across Cell

Chapter 4 Movement of Molecules Across Cell. Aims:. Diffusi o n Mediated transport system - faciliated transport - active transoprt Osmosis Endocytosis and exosctosis Epithelial transport. Chapter 4 Movement of Molecules Across Cell Membranes = Trans-Membrane Traffic.

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Food Biotechnology Dr. Kamal E. M. Elkahlout Food Biochemistry 3 Proteins

Food Biotechnology Dr. Kamal E. M. Elkahlout Food Biochemistry 3 Proteins. Proteins . Complex molecules widely distributed in all food stuffs. Every Protein has a unique structure and confirmation or shape therefore carry out specific functions. All proteins are made up of amino acids.

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Biology Notes

Biology Notes. Topic: Cell Processes / Achieving Homeostasis AL Biology COS #2 Glencoe High School Mrs. Barkley. Alabama Biology Course of Study Objective #2.

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Cells

Cells. Chapter 3. Cells. The Cell Theory Emerges. Modern cell theory All organisms consists of one or more cells Each new cell arises from division of another, preexisting cell A cell is the smallest unit with the properties of life

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Membrane Transport

Membrane Transport. Passive Transport Moves from high to low concentration Does not require energy. 3) Diffusion Movement of small & polar/nonpolar particles across bilayer. Bilayer is permeable to the particle. O 2 CO 2 Glycerol. No transport proteins are required.

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Understanding How the Cell Operates (organelles)

Understanding How the Cell Operates (organelles). Cell membrane. Key molecules Phospholipid bilayer Transport proteins Carbohydrates Cholesterol. Cell Membrane Animation. The membrane. Why is it Fluid? Why is it Mosaic? . Key Function of the Membrane. Helps to maintain homeostasis :

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TRANSPORT IN CELLS

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Membrane Transport

Membrane Transport. Plasma membranes are selectively permeable Some molecules easily pass through the membrane; others do not. Types of Membrane Transport. Passive processes No cellular energy (ATP) required Substance moves down its concentration gradient Active processes

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Lab #5

Lab #5. Osmosis, Tonicity, and Measurements of Concentration. Diffusion and Concentration. Solute particles diffuse from regions of high concentration to regions of low concentration Proceeds until equilibrium reached. Lecture Text Fig 6.2. Diffusion and Membrane Transport.

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Chapter 5 Membrane Molecule Movement

Chapter 5 Membrane Molecule Movement. D iffusion Spontaneous movement of particles from an area of high concentration to an area of low concentration Does not require energy (exergonic) Occurs via random kinetic movement.

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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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Water Potential

Water Potential. Water Potential. Tendency of water to favor one side more than another. Water moves from an area of high potential to low potential. Predicts which way water diffuses in PLANT tissues using the Greek letter Psi. Formula for Water Potential.

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Ch. 15 - Solutions

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Osmosis and diffusion

Osmosis and diffusion. By Chonell Peralta a nd Rosa Parra. What is osmosis and diffusion?. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

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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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