movementofsubstances.blogspot.com
MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE: INTRODUCTION
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Friday, August 5, 2011. I) Analysing the movement of substances across the plasma membrane. Ii) Understanding the movement of substances across the plasma membrane in everyday life. Iii) Appreciating the movement of substances across the plasma membrane. The structure of an animal cell. The structure of a plant cell. An Animal Cell Simulation Video. A plant cell simulation video. NORSALIZA BT. HJ. SABU. The Blogger :Cikgu Norsaliza.
movementofsubstances.blogspot.com
MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE: 3.2 MOVEMENT OF SUBSTANCE ACROSS THE PLASMA MEMBRANE IN EVERYDAY LIFE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Monday, February 28, 2011. 32 MOVEMENT OF SUBSTANCE ACROSS THE PLASMA MEMBRANE IN EVERYDAY LIFE. THE EFFECTS OF HYPOTONIC, HYPERTONIC AND ISOTONIC SOLUTIONS ON ANIMAL AND PLANT CELLS. 1 Hypertonic solution is the solution with a higher solute concentration ('hyper': more). 2 Hypotonic solution is the solution with a lower solute concentration ('hypo' : less). A PLANT CELLS IN AN ISOTONIC SOLUTION. 1 When a plant cell is placed in a ...
movementofsubstances.blogspot.com
MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Monday, February 28, 2011. THE EFFECTS AND APPLICATIONS OF OSMOSIS IN EVERYDAY LIFE. A) Wilting in Plants. 1 Excessive use of chemical fertilisers will cause plants to wilt. 2 Fertilisers will dissolve in the soil and cause the soil water to be hypertonic to the root cells of the plant. 3 As a result, water diffuses out of the root cells by osmosis. Plasmolysis occurs and the plant cells become flaccid, causing the plant to wilt.
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE: 3.3 APPRECIATING THE MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Thursday, February 24, 2011. 33 APPRECIATING THE MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. 1 The movement of substances across the plasma membrane occur in a continuous and controlled manner for the survival of a cell. 2 The plasma membrane which is semi-permeable to different substances acts as a :. Which regulate what goes in and out of the cell. Between the the contents of cells and the external environment. 5 To maintai...
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Tuesday, March 1, 2011. 1 Movement of molecules or ions against the concentration gradient acroos the plasma membrane. 2 Requires both carrier proteins and the expenditure of energy. To transport the molecules or ions. The energy for active transport usually comes from ATP (adenosine triphosphate). Which is generated during respiration in the mitochondria. 6 Carrier proteins act as pumps. NORSALIZA BT. HJ. SABU. TEST YOURSELF : Cell.
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Tuesday, March 1, 2011. 1 Passive transport is the movement of substances across the plasma membrane from a region of high concentration to a region of lower concentration, that is going down a concentration gradient until a dynamic equilibrium achieved. 2 Therefore, this process does not require energy. 3 Substances move across the plasma membrane down the concentration gradient through three different ways:. 3 Example: the absorpt...
movementofsubstances.blogspot.com
MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE: 3.1 MOVEMENT ACROSS THE PLASMA MEMBRANE
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MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRANE. Chapter 3 Biology F4. Tuesday, March 1, 2011. 31 MOVEMENT ACROSS THE PLASMA MEMBRANE. THE STRUCTURE OF THE PLASMA MEMBRANE. 1 The Fluid-Mosaic Model of the plasma membrane was proposed by S. Singer and G. Nicolson in 1972. They proposed that membrane proteins are dispersed throughout and inserted into the phospholipid bilayer. 3 Two parts in each phospholipid molecule:. I) a polar head which is hydrophilic (' keen of water. 5 Types of proteins embedded :.
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