What role does the liver play in converting lactic acid back into glucose?
What role does the liver play in converting lactic acid back into glucose?
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AQA GCSE Biology
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How does blood flow through the muscles help manage lactic acid after exercise?
How does blood flow through the muscles help manage lactic acid after exercise?
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Why do muscles become fatigued and stop contracting efficiently during long periods of vigorous activity?
Why do muscles become fatigued and stop contracting efficiently during long periods of vigorous activity?
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What is oxygen debt, and how does it relate to lactic acid buildup during exercise?
What is oxygen debt, and how does it relate to lactic acid buildup during exercise?
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How does anaerobic respiration lead to the buildup of lactic acid in muscles?
How does anaerobic respiration lead to the buildup of lactic acid in muscles?
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What happens when insufficient oxygen is supplied to muscles during exercise?
What happens when insufficient oxygen is supplied to muscles during exercise?
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What changes occur in heart rate, breathing rate, and breath volume during exercise, and why?
What changes occur in heart rate, breathing rate, and breath volume during exercise, and why?
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How does the human body respond to the increased demand for energy during exercise?
How does the human body respond to the increased demand for energy during exercise?
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Why is the breakdown of excess proteins to form urea important for excretion?
Why is the breakdown of excess proteins to form urea important for excretion?
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How does respiration fit into the overall metabolic processes?
How does respiration fit into the overall metabolic processes?
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Top Questions
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Sourav
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Outline the process of genetic modification using bacterial production of a human protein as an example, limited to: (a) isolation of the DNA making up a human gene using restriction enzymes, forming sticky ends (b) cutting of bacterial plasmid DNA with the same restriction enzymes, forming complementary sticky ends (c) insertion of human DNA into bacterial plasmid DNA using DNA ligase to form a recombinant plasmid (d) insertion of recombinant plasmids into bacteria (specific details are not required) (e) multiplication of bacteria containing recombinant plasmids (f) expression in bacteria of the human gene to make the human protein
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Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
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Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products
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Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein
