Biology 11
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Topic 1: The Eukaryotic Cell
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A eukaryotic cell is defined as a cell with a nucleus and membrane-bound organelles. Animal and plant cells are eukaryotic, but a slightly ...
Topic 2: Transport across the membranes
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The plasma membrane of a cell has many functions: -separate internal and external environment -protect the cell -a place for recogniti...
Topic 3: Inner working of the cell: Water
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In learning about the eukaryotic cell, proteins, carbohydrates, lipids and nucleic acids were mentioned. What are these? Well, the followi...
Topic 4: Inner workings of the cell: Organic compounds
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Organic compounds - carbon based molecules, also called biomolecules The role of carbon Carbon has 4 electrons in its outer valence s...
Topic 5: Inner workings of the cell: Carbohydrates (Szénhidrátok)
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Carbohydrates -most common organic compounds (biomolecules) -are energy sources for cells - broken down by cellular respiration (ne...
Topic 6: Inner workings of the cell: Proteins
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Proteins are large molecules. They are not really soluble, rather they form colloids - colloids are about 500nm, which is larger than ...
Topic 7: Inner workings of the cell: Lipids
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Lipids are insoluble in water because they are nonpolar . BUT, they do dissolve in apolar solvents, like alcohols, ethers, etc. Lipids in...
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