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Tuition Singapore H2 H1 Biology Tuition – Cellular Respiration   Question Describe the process of oxidative phosphorylation in the mitochondrion. Answer  NADH and FADH2 as electron donors to the electron transport chain in inner mitochondrial membrane Electrons lose energy as they are passed down a series of electron carriers of progressively lower energy level Energy released is used to actively transport protons via proton pump From matrix to inter-membrane space Generate proton gradient across the inner membrane Protons transported via proton channel of ATP synthase Via facilitated diffusion / down concentration gradient / chemiosmosis Proton motive force ATP synthesized from ADP and Pi by ATP synthase Oxygen as final electron acceptor of the ETC Combines with protons to form water ...

Tuition Singapore H2 Economics – Distinguish between public goods and merit goods.   Model Answer   Public goods are goods that are non-rivalrous in consumption and non excludable as well whilst merit goods are goods deemed socially desirable for individuals by one’s government. Both public and merit goods experience market failure whereby society is not consuming an producing at the socially optimum output. However, public goods experience complete market failure whilst merit goods only experience partial market failure.   Firstly, public goods, such as street lighting are non-rivalrous whilst merit goods are rivalrous, such as sports facilities’ usage. Public goods, being non-rivalrous refers to the fact that a person’s consumption of one unit og good does not lead t ...

Tuition Singapore A level Math Tuition – Inequality Question Solution   Please contact Angie @ 96790470 or Mr Ong @ 98639633 if you need tuition A level Mathematics/JC Maths/H2/H1 Math      

Tuition Singapore A Level Physics Tuition – Measurement Question Solution D Measurement of temperature requires 1 scale reading. Uncertainty of scale reading = ½ of smallest division = 0.5° Decimal place of reading follows d.p. of uncertainty   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need tuition A level/JC H2/H1 Physics    

Tuition Singapore A Level Chemistry Tuition – Redox Question In theory, 3 mol of NH3OH+(aq) is required to convert 1 mol of BrO3–(aq) to Br–(aq). Which one of the following statements about this reaction is correct? A      NH3OH+ is acting as an oxidising agent. B      The change in oxidation number of nitrogen is +4. C      N2O is the nitrogen–containing product. D      The reaction is likely to have a high activation energy. Solution Please contact Angie @ 96790479 or Mr Ong if you need tuition in A level/JC H2/H1 Chemistry