1) What is a stem cell? a) Differentiated cell that can differentiate into one or more specialised b) Undifferentiated cell that can become one or more stem cells c) Differentiated cell that can become one or more stem cells d) Undifferentiated cell that can differentiate into one or more specialised cell types e) Undifferentiated cell that cannot differentiate into one or more specialised f) Undifferentiated cell that can make more undifferentiated cells 2) What are adult stem cells? a) Stem cells from adults that can only differentiate into certain specialised cells b) Stem cells from adults that can not differentiate into specialised cells c) Stem cells from adults that can differentiate into specialised cells d) Stem cells from adults that can become any other type of specialised cell e) Stem cells from adults that can only become one type of specialised cell f) Stem cells from adults that can only become nerve cells 3) Where can adult stem cells be found? a) In the blood b) In the brain c) In the bone marrow d) In the heart e) In the lymph glands f) In the gall bladder 4) What are embryonic stem cells? a) Stem cells from embryos that do not differentiate into any kind of specialised cells b) Stem cells from embryos are differentiated cells c) Stem cells from embryos that are specialised cells d) Stem cells from embryos that can only differentiate into one or two types of specilaised cells e) Stem cells from embryos that can only differentiate into one type of specialised cell f) Stem cells from embryos that can differentiate into any specialised cell 5) Where are embryonic stem cells found? a) Human foetus b) Brain cells c) Differentiated cells d) Specialised cells e) Early human embryos f) Late human embryos 6) Give one advantage of using adult stem cells. a) Fewer ethical issues as obtained from animals b) Fewer ethical issues as obtained from adults who can consent to their use c) Fewer ethical issues as do not require anyone's consent d) Fewer ethical issues as obtained from human embryo's e) Fewer ethical issues as can only be obtained from adults f) Fewer ethical issues as can only be done once in a lifetime 7) Give two disadvantages of using adult stem cells. a) 1. Can take a long time for a suitable donor to be found. 2. Can only differentiate into some specialised cell types, so treat fewer diseases b) 1. Does not take a long time for a suitable donor to be found. 2. Can differentiate into many specialised cell types, so treat many diseases c) 1. Does not need a suitable donor to be found. 2. Can only differentiate into more adult stem cells, so treat fewer diseases d) 1. Can take a long time for a suitable animal to be found. 2. Can not differentiate into specialised cell types, so treat fewer diseases e) 1. Can use your friend as a donor. 2. Can only differentiate into some specialised cell types, so treat lots of diseases f) 1. Does not take a long time for a suitable donor to be found. 2. Can only differentiate into some specialised cell types, so treats no diseases 8) Give two advantages of using embryonic stem cells. a) 1. Can differentiate into a few specialised cells, so can be used to treat many diseases. 2. Difficult to obtain as they can be taken from spare embryos b) 1. Can differentiate into muscle cells, so can be used to treat many diseases. 2. Easier to obtain as they can be taken from spare adult stem cells c) 1. Can not differentiate into any specialised cell, so cannot be used to treat many diseases. 2. Easier to obtain as they can be taken from spare animals d) 1. Can differentiate into any specialised cell, so can be used to treat many diseases. 2. Easier to obtain as they can be taken from spare embryos e) 1. Can differentiate into brain cells, so can be used to treat neural diseases. 2. Difficult to obtain as they cannot be taken from spare embryos f) 1. Can differentiate into any specialised cell, so can be used to treat certain diseases. 2. Easier to obtain as they can be taken from specialised cells 9) Give two disadvantages of using embryonic stem cells. a) 1. Ethical issues surrounding their use, as every embryo is a potential life. 2. Potential risks involved with treatments, such as transfer of viral infections. b) 1. No ethical issues surrounding their use. 2. No risks involved with treatments. c) 1. Ethical issues surrounding their use, as animals are used. 2. Low risks involved with treatments, such as transfer of viral infections. d) 1. Ethical issues surrounding their use, as every specialised cell is destroyed. 2. Risks involved with treatments, such as loss of appetite... e) 1. No ethical issues surrounding their use, as no embryo is lost. 2. Potential risks involved with treatments, such as transfer of phenotypes. f) 1. Ethical issues surrounding their use, as every specialised cell used comes from an adult. 2. Potential risks involved with treatments, such as changing of blood group.

Stem cells

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