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  • Bio Cell Lesson 2 Part I Question And Answer
  • Bio cell lesson 2 part I Question And Answer
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Bio cell lesson 2 part I Questions And Answers

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Bio cell lesson 2 part I Questions And Answers What forms the plasma membrane ? - ANS-lipids, proteins & carbohydrates Definition of the cell membrane ? - ANS-continuous sheet that spreads over the entire cell surface Functions of the cell membrane - ANS-a physical barrier, regulation of the passage of materials, sensitivity and support what we need to see the cell membrane ? - ANS-The electron microscope Who created the fluid mosaic model ? - ANS-Singer & Nicholson in 1972 What is the fluid mosaic model ? - ANS-- Lipid bilayer is a two-dimensional fluid, where lipids and proteins adopt a mosaic conformation. - Lipids and proteins are bound mostly by non-covalent interactions ( fluid mosaic model). - Therefore, biological membranes are fluid structures in which their components (proteins and lipids) are able to move within the bilayer. Why the lipids are very important in the cell membrane ? - ANS-The structure and organisation of cell membranes, as well as their properties, are mainly determined by lipids, which constitute about 50 % of the mass of the membrane CONTINUES...

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  • bio cell lesson 2 part i questions and answers
  • what forms the plasma membrane
  • definition of the cell membrane
  • functions of the cell membrane

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