eBook
pH regulation of the stomach
Parts of this sub-topic could be a real problem if you are a Standard Level student - somehow there seems to be a mismatch between the content in the core topics and the content of the core part of the...
eBook
Introduction to biochemistry
The section on International-Mindedness for this introductory sub-topic stresses “the differences in the availability of nutritious food, which have major and diverse impacts on human health”. In the...
eBook
(AHL) Nuclear medicine
Technetium-99m Although much of this sub-topic deals with cancer treatment, technetium-99m, the most widely used radioisotope in medicine, is only used in diagnostic radiotherapy. It is ideal for this...
eBook
(AHL) Stereochemistry in biomolecules
The syllabus states clearly that students need to understand that with one exception, amino acids are chiral, and only the L-configuration is found in proteins. Chirality is no problem but if students...
eBook
(AHL) Biological pigments
One of the most beautiful sights in nature is the changing colour of autumn leaves (or fall leaves in the US). Other than haemoglobin and myoglobin, virtually all of the biological pigments covered in...
eBook
(AHL) Photovoltaic cells and DSSCs
Organometallic ruthenium compounds A simple dye-sensitized solar cell is easy and cheap to make (see Practical work below) using a dye such as tea, onion skin or raspberries. Commercial cells are more...
eBook
(AHL) Nuclear fusion & fission
Who sets the trends? Under ‘Applications and skills’ the syllabus asks for a discussion on the different properties of uranium dioxide, UO2, and uranium hexafluoride, UF6, in terms of structure and bonding....
DP essentials
Criterion E
Criterion E focuses on your engagement with the planning and process of your Extended Essay and on your reflections on your engagement with the research process. This page details what is required to...
DP essentials
Criterion D
Criterion D focuses on the structure and layout of your essay. This page details what is required to gain maximum marks and lists some of the common errors made by students when addressing this criterion....
DP essentials
Criterion C
Criterion C focuses on research, analysis, discussion and evaluation. This page details what is required to gain maximum marks and lists some of the common errors made by students when addressing this...