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Write down the difference between aerobic respiration and anaerobic respiration in humans, and explain the process and elimination of the 'oxygen debt' . (6 marks)

Aerobic respiration requires oxygen, anaerobic respiration does not. In aerobic respiration glucose and oxygen react together in cells to produce carbon dioxide and water and energy. In particular this occur...
JM
Answered by Jas M. • Biology tutor
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What is the difference between non competitive and competitive inhibitors?

Competative inhibitors bind with the enzyme at the active site, blocking the substrate from binding and therefor preventing the substrate from binding and forming enzyme substrate complexes. Therefor if you ...
AK
Answered by Anja K. • Biology tutor
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Explain how changing one base in a DNA sequence may result in a non-functional protein being produced.

Changing one DNA base will alter one triplet in the DNA code. As each triplet codes for an amino acid this may result in a change to the primary structure of the protein produced. If the changed amino acid w...
EC
Answered by Emily C. • Biology tutor
16647 Views

Describe the structure of proteins

Proteins have a primary, secondary, tertiary and quaternary structure. The primary structure comprises of the specific sequence of amino acids which are held together by peptide bonds. The secondary structur...
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Answered by Taran T. • Biology tutor
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What affect do mutations to pathogens have on the effectiveness of vaccinations, and why is this important?

Mutations of pathogens produce new strains. Vaccinations may no longer be effective against these new strains. Vaccinations would kill non-resistant strain pathogens. However, resistant strain pathogens woul...
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Answered by Sophie R. • Biology tutor
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