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Carbohydrate answers6 March 2018

1. Methanal only contains two of the three distinguishing features of a carbohydrate. In addition to containing a carbonyl group and an empirical formula of CH2O carbohydrates must also contain at least... more

Carbohydrate questions 6 March 2018

1. Explain why glucose C6H12O6 is considered to be a carbohydrate, whereas methanal, which also contains a carbonyl (>C=O) group and has the empirical formula CH2O is not.2. State four different major... more

MC test: Taxol - a chiral auxiliary case study28 February 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

MC test: Environmental impact of some medications21 February 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

MC test: Antiviral medications14 February 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

MC test: pH regulation of the stomach7 February 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

Update and a problem to solve31 JIB Docs (2) Teamary 2018

Quiz questions and galleries for all the sub-topics of Option B : Biochemistry and Option C : Energy for both SL and HL and all the SL sub-topics for Option D : Medicinal chemistry have now been completed.... more

MC test: Aspirin & penicillin29 JIB Docs (2) Teamary 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

Nuclear medicine answers24 JIB Docs (2) Teamary 2018

(b) λt½ = 0.693 so λ = 0.693 ÷ 6.01 = 0.115 hλt = ln (No/N) so 0.115 x 4.50 = ln (10.0/N) where N = mass remaining after 4.50 hoursln (10.0/N) = 0.5175 so N = 10 ÷ 1.678 = 5.96 mg(c) Any three from:... more

Nuclear medicine questions 24 JIB Docs (2) Teamary 2018

1. Technetium-99m is generated in a hospital from molybdenum-99. The half-life of technetium-99m is 6.01 hours. It decays to technetium-99 by emitting gamma radiation. The technetium-99 then decays to... more