Biology-B1-Stem Cells 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: tonisha_Created on: 25-06-22 16:08 When cells specialise this is called what? differentiation 1 of 30 What is differenciation? where a cell changes to become specialised for its job 2 of 30 Undifferentiated cells are called what? stem cells 3 of 30 Stem cells can be found where in humans and plants? humans-embryo plants-meristem tissue 4 of 30 The cells in and _____ embryo are capable of differentiating into? cells in an early embryo are capable of differentiating into any type of cell 5 of 30 These are called ________ stem cells? embryonic 6 of 30 Stem cells have the possibility to produce more of the ______type of cell or _____ types of cells? produce more of the same type of cell or different types of cells 7 of 30 Stem cells in the bone marrow differentiate to produce cells found in the? For example? (3) blood WBC RBC or platelets 8 of 30 The cancer of the bone marrow is called what? leukaemia 9 of 30 TREATMENT OF LEUKAEMIA ------------------------------- Firstly the existing bone marrow is _______ using ______? destroyed using radiation 10 of 30 The patient will then receive a ________ from a _____? receive a transplant from a doner 11 of 30 The stem cells in it will then _______ and form a new ______ ______ or differentiate into _____ cells? will then divide ad form a new bone marrow or differentiate into blood cells 12 of 30 For this to take place, the doner must be ______ with the_____? the doner must be compatible with the patient 13 of 30 There is also a risk of a spread of? viruses 14 of 30 Therapeutic Cloning --------------- This is where an what is produced? embryo 15 of 30 With the same? genes as the patient 16 of 30 This means that the stem cells can be _______ into the _____? transplanted into patient 17 of 30 without? rejection from patients immune system 18 of 30 Once inside the body, the stem cells can begin to ________ and _______ inefficient cells? differentiate and replace inefficient cells 19 of 30 This method is useful for condition like what? (2) diabetes and paralysis 20 of 30 ETHICAL OBJECTIONS ------------------------ Many reject stem cell research as embryos contain? potential human life 21 of 30 Others believe that the ______ of existing patients is more ______? the suffering of existing patients is more important 22 of 30 Some also believe that most of the embryos in research are _____? unwanted 23 of 30 And would be ____anyway? destroyed 24 of 30 Plant Stem Cells ------------------- Stem cells in plants are found in the _______tissue? meristem tissue 25 of 30 Meristem tissue is found in the what two parts of a plant? roots and buds 26 of 30 Here, stem cells can _________ into _____ type of cell at any ______ in the plants _____? can differentiate into any type of cell at any point of plants life 27 of 30 One use of this is that it can be used to clone a ____ plant to prevent ______? a rare plant to prevent extinction 28 of 30 It is a ______ process and quite ____? quick process and quite cheap 29 of 30 It is also useful for farmers as the can clone plant that is _______ ______? disease resistant 30 of 30
Comments
No comments have yet been made