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What is a synapse and how does it work?

A synapse is a small gap between neurones (nerve cells). Information is passed along the neurone as an electrical impulse, but to get from one neurone to the next, the information is converted into a chemica...
RL
Answered by Rhiannon L. • Biology tutor
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Can you help me understand the movemement of tectonic plates and their margins

The Earth's surface is divide into plates, and these plates on the Crust move around slowly (mm's to cm's a year), this is due to convection currents in the mantle on which the crust sits. These convection c...
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Answered by Tom C. • Geography tutor
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Explain how proteins act as enzymes, including control by feedback inhibition in allosteric enzymes [9 marks]

The following answers this past exam question. Test your understanding by defining all the CAPITALISED words. Enzymes are GLOBULAR PROTEINS, which contain an active site to which the substrate binds. The sha...
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Answered by Paulien S. • Biology tutor
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Why is oxygen needed in respiration?

In respiration, as you know the electrons travel through the electron transport chain and provide the energy to pump Hydrogen ions across the inner membrane. Once they reach the end of the chain, where do th...
EJ
Answered by Emma J. • Biology tutor
16155 Views

Lithium and potassium are both in Group 1 of the periodic table. Explain why.

Li and K both have one electron in their outer shell and therefore perform chemical reactions in a similar way and share certain characteristics.
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Answered by Joshua D. • Chemistry tutor
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