'Lower solute concentration' diaporamas de présentation

Homeostasis and Transport

Homeostasis and Transport. Chapter 5. What is Homeostasis??. QUESTIONS??. Why is Transport important within your cells?? What are some things that are transported within you body??. I. Passive Transport.

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Cell Structure and Function

Cell Structure and Function. Chapter 6 and 7 AP Biology. Cell Theory. All living things are made of cells. Cells are the basic unit of structure and function in living things. All cells come from pre-existing cells. Eukaryotic vs. Prokaryotic Cells.

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Membrane Structure and Function

Membrane Structure and Function. Chapter 5. Membrane Structure. The fluid mosaic model of membrane structure contends that membranes consist of: - phospholipids arranged in a bilayer - globular proteins inserted in the lipid bilayer. Membrane Structure.

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Membranes

Membranes. Chapter 5. Membrane Structure. The fluid mosaic model of membrane structure contends that membranes consist of: - phospholipids arranged in a bilayer - globular proteins inserted in the lipid bilayer. Membrane Structure. Cellular membranes have 4 components:

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Chapter 4

Chapter 4. How Cells Work. Energy. Energy is central to life Universal relationship between energy and work Ultimate energy source = SUN Plants transform light energy into chemical energy (C6H12O6) Photosynthesis. What is energy?. Energy = capacity to do work

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CELL TRANSPORT

CELL TRANSPORT. Define these terms:. 1. Solute * 2. Solvent * 3. Semipermeable Membrane* 4. Passive Transport* 5.Active Transport* 6. Diffusion* 7. Osmosis* 8. Concentration Gradient 9. Facilitated Diffusion 10. Hypertonic 11. Hypotonic 12. Isotonic .

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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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Membranes

Membranes. Chapter 5. Membrane Structure. The fluid mosaic model of membrane structure contends that membranes consist of: - phospholipids arranged in a bilayer - globular proteins inserted in the lipid bilayer. Membrane Structure. Cellular membranes have 4 components :

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Waterways in vegetable kingdom

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Chapter 13 Ions in Aqueous Solutions and Colligative Properties

Chapter 13 Ions in Aqueous Solutions and Colligative Properties. 13-1 Compounds in Aqueous Solutions. The separation of ions that occurs when an ionic compound dissolves. Dissociation. One formula unit of NaCl produces two ions: One mole of NaCl produces two moles of ions

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Cells

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Membranes

Membranes. Life at the Edge. The plasma membrane is the boundary that separates the living cell from its surroundings The plasma membrane exhibits selective permeability , allowing some substances to cross it more easily than others. animation. Membrane Structure.

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Transport Across a Cell Membrane

Transport Across a Cell Membrane. The makeup of a cell membrane effects its permeability Three factors determine whether or not a substance is easily able to cross a cell membrane: 1. Polarity 2. Charge 3. Size. Passive Transport.

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Cell Membrane: Structure & Function

Cell Membrane: Structure & Function. Ms. Levensailor. Staple ingredients of membranes are: Lipids Proteins Phospholipids are most common Amphipathic molecule: it has both a hydrophilic and hydrophobic region. Membrane Structure. Membranes are fluid.

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Transport in Vascular Plants Chapter 36

Transport in Vascular Plants Chapter 36. Nicole Moenck Per. 1 . 36.1 Physical forces drive the transport of materials in plants over a range of distances. Selective Permeability of Membranes:

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Membrane Structure

Membrane Structure. ? The plasma membrane separates the living cell from its nonliving surroundings. Proteins. Outside of cell. Outside of cell. Hydrophilic region of protein. Hydrophilic head. Hydrophobic tail. Hydrophilic head. Phospholipid bilayer. Hydrophobic tail.

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Excretory System

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Essay prompt Week #1

Essay prompt Week #1. Discuss the web of life in a biological community. Your essay should focus on energy flow, conversion, and loss in food chains, including the concepts of trophic levels and pyramids. Key for Essay #1. Structural hierarchy Define community

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Patterns in Nature

Patterns in Nature . Diffusion and Osmosis. The processes of diffusion and osmosis account for much of the passive movement of molecules at the cellular level. DIFFUSION. OSMOSIS. MOVEMENT OF MOLECULES IN SOLUTION. Concentration gradient.

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Cell Transport Mechanisms

Cell Transport Mechanisms. Passive transport ( Diffusion ) Movement of a substance down a concentration gradient (area where there is more of a substance to an area where there is less of a substance) until equilibrium is reached

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