Quiz

13.- Stem cells- The future. An introduction to iPS cells

PEDRO ÁLVAREZ JIMÉNEZ 10 perguntas 5,0 (1 avaliação)

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1Tissue stem cells are found in our bodies. They can…
1. AAll make every type of cell in our body
2. BMake only the cells found in their own tissues
3. CMake embryonic stem cells
4. DMake only red blood cells
2Embryonic stem cells are ‘pluripotent’. This means they can…
1. AMake only the types of specialized cells found in the early embryo
2. BMake all the different types of specialized cells found in the body
3. CMake special ‘factors’ that change all other cells into stem cells
4. DCopy themselves
3What did Shinya Yamanaka discover?
1. AThat embryonic stem cells are pluripotent
2. BThat sometimes development goes backwards in our bodies
3. CThat specialized cells can be reprogrammed to behave like tissue stem cells
4. DThat specialized cells can be reprogrammed to behave like embryonic stem cells
4Reprogrammed cells are also called iPS cells. What does ‘iPS cells’ stand for?
1. AInduced pluripotent stem cells
2. BInduced particulate stem cells
3. CInductable pluripotent stem cells
4. DIndividual pluripotent stem cells
5A major difference between embryonic stem cells and iPS cells is…
1. AiPS cells can make more types of specialized cells than embryonic stem cells
2. BiPS cells can only be made from animal cells
3. CiPS cells can be made from an individual patient’s cells
4. DiPS cells are found in our adult bodies
6Scientists expect iPS cells to be useful for…
1. AStudying what goes wrong in diseases
2. BTesting drugs on human cells
3. CMaking cells to be transplanted into patients
4. DNone of the above
7Can iPS cells already be used to make cells for transplantation into patients?
1. AYes but only for genetic diseases
2. BNo and scientists are sure they will never be used to make cells for transplants
3. CNot yet. Scientists need to understand reprogramming better to develop therapies
4. DYes but only if the patient requests iPS cells
8Why do some people think iPS cells might help answer some ethical questions?
1. AiPS cells can be made without destroying an embryo
2. BiPS cells are artificial so we don’t have to worry about ethics
3. CShinya Yamanaka is a doctor so we can trust him
4. DiPS cells are easy to make so it’s too late to think about ethics
9iPS cells could in theory be used to make sperm and egg cells. This means…
1. AScientists have already made a new human being from a piece of skin
2. BIn the future, iPS cells may be useful for helping infertile couples
3. CiPS cells can breed with each other in a dish
4. DNone of the above
10What do scientists think are some important advantages of iPS cells?
1. AThey could be used to make cells for an individual patient that would not be rejected
2. BThey will make it easier to identify drugs that are likely to work in humans
3. CThey are very useful for studying inherited diseases
4. DAll of the above