| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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Most types of animal cell differentiate at an early stage. |
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At what stage of an animal cell's life cycle does it differentiate? |
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As an organism develops, cells differentiate to form different types of cells. |
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What happens during cell differentiation when an organism develops? |
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As a cell differentiates it acquires different sub-cellular structures to enable it to carry out a certain function. It has become a specialised cell. |
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What happens to a cell during differentiation to become a specialised cell? |
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Students should be able to explain the importance of cell differentiation. |
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Why is cell differentiation important? |
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In mature animals, cell division is mainly restricted to repair and replacement. |
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In mature animals, what is cell division mainly used for? Stretch - recall why new cells need to be made
Challenge - Explain why multicellular organisms are made of different types of cell? |
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A stem cell is an undifferentiated cell of an organism which is capable of giving rise to many more cells of the same type, and from which certain other cells can arise from differentiation. |
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What is a stem cell? |
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Students should be able to describe the function of stem cells in embryos, in adult animals and in the meristems in plants. |
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Stem cells from human embryos can be cloned and made to differentiate into most different types of human cells. |
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What is the function of stem cells in human embryos? |
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Stem cells from adult bone marrow can form many types of cells including blood cells. |
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What type of cells can be produced from bone marrow stem cells? |
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Knowledge and understanding of stem cell techniques are not required. |
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Double bubble stem cells and specialised cells. |
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Treatment with stem cells may be able to help conditions such as diabetes and paralysis. |
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What conditions are stem cells used to treat? |
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In therapeutic cloning an embryo is produced with the same genes as the patient. |
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What is produced in therapeutic cloning? |
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Stem cells from the embryo are not rejected by the patient?s body so they may be used for medical treatment. |
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Why can stem cells from embryos useful in medical treatment? |
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The use of stem cells has potential risks such as transfer of viral infection, and some people have ethical or religious objections.
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What are the dangers of using stem cells for treatment? GF: Discuss the ethical issues surrounding the use of artificial embryonic stem cells in people |
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(WS) Evaluate the practical risks and benefits, as well as social and ethical issues, of the use of stem cells in medical research and treatments. |
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What are the ethical issues surrounding the use of stem cells? EW: Evaluate the practical risks and benefits, as well as social and ethical issues, of the use of stem cells in medical research and treatments. |
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