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Quiz: Core Practical 1 - Caffeine and Daphnia Heart Rate
Edexcel A Level Biology SNAB A
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Welcome! Let's test your understanding of how caffeine affects Daphnia heart rate. This builds on your knowledge of cardiovascular physiology, enzymes, and experimental techniques.
Why are Daphnia often used for heart rate experiments?
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Which factors must be controlled in the caffeine and Daphnia experiment? (Select all that apply)
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Caffeine is known to act as a {{blank0}}, increasing the {{blank1}} of the heart.
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Match the items on the left with their correct pairs on the right
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What ethical concern is raised by using Daphnia in experiments?
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Match the items on the left with their correct pairs on the right
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What changes might caffeine cause in Daphnia? (Select all that apply)
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The {{blank0}} solution is used as the control in this experiment, ensuring {{blank1}} results.
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What is the purpose of replicating the experiment with multiple Daphnia?
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