The diagram is a summary of part of a respiratory pathway in a cell - Scottish Highers Human Biology - Question 5 - 2019
Question 5
The diagram is a summary of part of a respiratory pathway in a cell.
(a) Give evidence from the diagram that confirms stage X is the energy pay-off phase.
(b) Stat... show full transcript
Worked Solution & Example Answer:The diagram is a summary of part of a respiratory pathway in a cell - Scottish Highers Human Biology - Question 5 - 2019
Step 1
Give evidence from the diagram that confirms stage X is the energy pay-off phase.
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Answer
ATP is produced and released during stage X, indicating it is the energy pay-off phase.
Step 2
State the function of dehydrogenase enzymes.
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Answer
Dehydrogenase enzymes function to remove or release hydrogen ions/ electrons.
Step 3
Name a hormone that is involved in pathway Y.
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Answer
Glucagon.
Step 4
Use information from the diagram to explain why this would reduce cell division in these individuals.
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Answer
Individuals who cannot produce glucose-6-phosphate dehydrogenase will have reduced levels of nucleic acids and nucleotides due to the lack of intermediate Q. Nucleic acids are essential for cell division, including DNA replication and protein synthesis, thus hindering the capacity of these individuals to divide cells effectively.
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