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Explain the stages of aerobic respiration that occur in the mitochondria of eukaryotes. [8]

Aerobic respiration is the controlled released of energy in cells by converting organic molecules into ATP. It invovles the reduction and oxidation of electron carriers. Firstly the link reaction occurs wher...
JP
Answered by Joonatan P. • Biology tutor
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Explain the sliding-filament theory

Annotated diagram of a sarcomere. Explaining the key steps
JP
Answered by Joonatan P. • Biology tutor
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How do I start a plan for an exam essay?

First, read the question and identify what it is asking you to do. Then decide what your argument is going to be e.g. if the question is asking you to assess the importance of the Russo-Japanese war to the R...
RH
Answered by Rebecca H. • History tutor
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Explain why Sc3+(aq) is colourless, while Ni2+(aq) is green.

Colour arises due to partially filled d-orbitals. D-orbitals are split into two sub-orbitals with slightly different energies. When an electron in the lower energy d sub-orbital absorbs light, it moves up to...
CA
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How and why have socialists been historically divided over the means of achieving their goals?

Disagreement within socialism regarding means can be broadly divided into three disputes. First, the revolutionary strand, in the context of absent or limited suffrage, saw the fundamental restructuring of s...
MC
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