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Understandings, applications and Skills:
1.1.U1 According to the cell theory, living organisms are composed of cells.
1.1.U2 Organisms consisting of only one cell carry out all functions of life in that cell. [Students are expected to be able to name and briefly explain these functions of life: nutrition, metabolism, growth, response, excretion, homeostasis and reproduction.]
1.1.U3 Surface area to volume ratio is important in the limitation of cell size.
1.1.U4 Multicellular organisms have properties that emerge from the interaction of their cellular components.
1.1.U5 Specialized tissues can develop by cell differentiation in multicellular organisms.
1.1.U6 Differentiation involves the expression of some genes and not others in a cell’s genome.
1.1.U7 The capacity of stem cells to divide and differentiate along different pathways is necessary in embryonic development and also makes stem cells suitable for therapeutic uses.
1.1.A1 Questioning the cell theory using atypical examples, including striated muscle, giant algae and aseptate fungal hyphae.
1.1.A2 Investigation of functions of life in Paramecium and one named photosynthetic unicellular organism. [ Chlorella or Scenedesmus are suitable photosynthetic unicells, but Euglena should be avoided as it can feed heterotrophically.]
1.1.A3 Use of stem cells to treat Stargardt’s disease and one other named condition.
1.1.A4 Ethics of the therapeutic use of stem cells from specially created embryos, from the umbilical cord blood of a new-born baby and from an adult’s own tissues.
1.1.S1 Use of a light microscope to investigate the structure of cells and tissues, with drawing of cells. Calculation of the magnification of drawings and the actual size of structures and ultrastructures shown in drawings or micrographs. (Practical 1) [ Scale bars are useful as a way of indicating actual sizes in drawings and micrographs.]
[Text in square brackets indicates guidance notes]
1.1.U2 Organisms consisting of only one cell carry out all functions of life in that cell. [Students are expected to be able to name and briefly explain these functions of life: nutrition, metabolism, growth, response, excretion, homeostasis and reproduction.]
1.1.U3 Surface area to volume ratio is important in the limitation of cell size.
1.1.U4 Multicellular organisms have properties that emerge from the interaction of their cellular components.
1.1.U5 Specialized tissues can develop by cell differentiation in multicellular organisms.
1.1.U6 Differentiation involves the expression of some genes and not others in a cell’s genome.
1.1.U7 The capacity of stem cells to divide and differentiate along different pathways is necessary in embryonic development and also makes stem cells suitable for therapeutic uses.
1.1.A1 Questioning the cell theory using atypical examples, including striated muscle, giant algae and aseptate fungal hyphae.
1.1.A2 Investigation of functions of life in Paramecium and one named photosynthetic unicellular organism. [ Chlorella or Scenedesmus are suitable photosynthetic unicells, but Euglena should be avoided as it can feed heterotrophically.]
1.1.A3 Use of stem cells to treat Stargardt’s disease and one other named condition.
1.1.A4 Ethics of the therapeutic use of stem cells from specially created embryos, from the umbilical cord blood of a new-born baby and from an adult’s own tissues.
1.1.S1 Use of a light microscope to investigate the structure of cells and tissues, with drawing of cells. Calculation of the magnification of drawings and the actual size of structures and ultrastructures shown in drawings or micrographs. (Practical 1) [ Scale bars are useful as a way of indicating actual sizes in drawings and micrographs.]
[Text in square brackets indicates guidance notes]
bioknowledgy
Functions of Life
functions_of_life.docx | |
File Size: | 5600 kb |
File Type: | docx |
Extra Presentations
1.1_introduction_to_cells.pptx | |
File Size: | 1656 kb |
File Type: | pptx |
1.1_stem_cells_daa.pptx | |
File Size: | 1566 kb |
File Type: | pptx |
microscopes
1.1_use_of_a_light_microscope.ppt | |
File Size: | 1810 kb |
File Type: | ppt |
MagNification
cell_sizes.doc | |
File Size: | 3239 kb |
File Type: | doc |
Stem Cell Quad
Leukemia
stem_cells_and_leukaemia.docx | |
File Size: | 169 kb |
File Type: | docx |
Alex Lee Videos
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- Topic 1 - Cell Biology
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Topic 2 - Molecular Biology
- Topic 2.1 - Molecules to Metabolism
- Topic 2. 2 - Water
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- Topic 2.4 - Proteins
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