Extended Essay Stem Cells

IB Biology EE, IB Chemistry EE, Extended Essay in IB Biology
Good EE must have a Good Focus Research Question.


Research question MUST be Focused, Well Defined, Independent Variable and Dependent Variables which can be treated effectively within the 4000 words limit. 
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Good Research Question
Is agar a viable substitute for agarose in Lambda DNA gel electrophoresis and if yes, what is the optimum gel concentration for it to produce comparable results with agarose as an electrophoresis medium.


Poor Research Question
Investigation on Gel electrophoresis using different agars solution.


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Good Research Question
In vitro study on the effect of temperature and pH on Antimicrobial activity of Aqueous Garlic Extract against E Coli and Staphylococcus Aureus


Poor Research Question
Antimicrobial Investigation on Garlic Extract against E Coli and Staphylococcus Aureus


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Good Research Question
Comparison of Phenol Chloroform, Proteinase K and combination of the two in respect to the purity attained in DNA extracted from onion.


Poor Research Question
DNA purification using Phenol Chloroform and Proteinase K.


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Good Research Question
Determination of iron concentration in different parts of Brassica rapa sp Pekinensis (Cabbage) using Visible Spectrophotometer.


Poor Research Question
Spectrophotometric Determination of iron in cabbage


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Good Research Question
In vitro study of the synergism between Essential Oils, Cinnamon and Cloves in inhibiting the growth of E Coli and Staphylococcus aureus


Poor Research Question
Antimicrobial effect of Cinnamon and Cloves on the Growth of E Coli and Staphylococcus aureus


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EE Biology/Chemistry (2007 -2011) can be view in YUDU.
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Marks for EE Biology/Chemistry/Physics         (Total 36 marks)
Criterion A ( Research Question )                                                                                  
Research Question clearly stated in the introduction and sharply focused, making effective treatment possible within the word limit.                                                                 ( 2 marks )
Criterion B ( Introduction/Rational/Justification)
Context of Research Question is clearly demonstrated. Introduction explains the significance of the topic and why it is worthy of investigation/justification.                           (2 marks )
Criterion C (Investigation/Methodology) 
An imaginative range of appropriate sources has been consulted, data gathered and relevant material carefully selected and  well planned.                                                 (4 marks )
Criterion D (Knowledge/Understanding of topic ) 
Good knowledge/understanding of topic. Essay clearly/ precisely locates the investigation in an academic context.                                                                                           ( 4 marks )
Criterion E (Reasoned Argument) 
Ideas presented clearly in logical/coherent manner with reasoned and convincing argument in relation to research question.                                                                       ( 4 marks )
Criterion F (Analytical/Evaluative Skills)
Effective/sophisticated application of analytical and evaluative skills.     (4 marks)
Criterion G (Use of Scientific Language)
Language is clear and precise.Terminology is appropriate, accurate, 
with skill and understanding.                                                                        ( 4 marks)
Criterion H (Conclusion) 
Conclusion clearly stated, relevant to research question, with the evidence and unresolved questions presented in the essay.                                                                   (2 marks)
Criterion I (Formal Presentation)
Formal presentation is with referenced material, diagrams, illustrations, citations, original photographs, Table Data Collection/Presentation, footnote/appendix          ( 4 marks )                                                                 
Criterion J (Abstract) 
Research question, methodology, results and conclusion in 300 words.        ( 2 marks )                                                                                                                     
Criterion K (Holistic Judgement) 
Intellectual initiative, depth of understanding, novel/ innovative approaches to address the research question. Originality and creativity with personal approach backed up by solid research and reasoning                                                                                                     ( 4 marks )
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EE Biology/Chemistry in Issuu.

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Click HERE to get in Assessment Criteria for Chemistry EE

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50 Excellent Extended Essay sample is available from the following website
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Thanks to Intense Cogitation for providing the link 
Source taken from IBO EE Assessment Guidelines
Wish all IB students all the best in your EE journey.  
All the best. Have fun and learn along the way, find joy in what you do and do it well. If a task is once begun, never leave it till it is done. Be the labor great or small, do it well or  not at all........................................................................................Lawrence Kok

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