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Compare anaerobic respiration in a yeast cell with anaerobic respiration in a muscle cell.

Anaeobic respiration in yeast: glucose -> carbon dioxide + ethanol Anaerobic respiration in muscle cells: glucose -> lactic acid The lactic acid build up in muscles requires oxygen to be broken down an...
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Answered by Tom M. • Biology tutor
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Describe how information passes across a synapse

A synapse consists of a presynaptic and a postsynaptic neuron. Information passes across when an electrical signal reaches the end of the presynaptic neuron, causing the release of molecules called neurotran...
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Answered by John A. • Biology tutor
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Explain why an extensive network of capillaries and ventilation of the lungs helps to maximise the effectiveness of gas exchange.

The capillaries deliver blood that has high carbon dioxide levels and low oxygen levels and take away blood that has high oxygen levels and low carbon dioxide levels. This means there is always a concentrati...
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Answered by Annabel C. • Biology tutor
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What are the similarities and differences between competitive and non-competitive inhibition within enzymes?

Competitive inhibition occurs when the substrate and inhibitor molecule are similar in shape and size and therefor compete to bind in the enzymes active site, non-competitive inhibition however is when the i...
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Answered by Stella W. • Biology tutor
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Explain the process of evolution?

Evolution occurs via a process called natural selection,Natural selection (termed survival of the fittest by Darwin) is where organisms that are better adapted to an environment survive and reproduce. Theref...
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Answered by Stella W. • Biology tutor
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