English National Curriculum - Science
Mission Objectives
Safely conduct experiments to determine how a change in pH affects the rate of reaction of an enzyme
Collect appropriate results and use these results to calculate a mean, ignoring any anomalous results
Evaluate the results from the experiment and draw appropriate conclusions from these results
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Words and meanings to learn
optimum pH
the pH at which an enzyme-substrate reaction works best at.
active site
the part of the enzyme which is responsible for binding and breaking down the substrate.
denature
when the enzyme's active site changes shape so it can no longer bind with the substrate and produce a product.
initial rate of reaction
the start of the reaction; this is usually the fastest part of the reaction.
rate of reaction
a measure of the breakdown of reactant or the formation of product over a unit of time.
Samantha is an accomplished science educator whose current work centres on curriculum design and professional development, supporting teachers to deliver high-quality science education through evidence-informed approaches. She is a former Head of Chemistry and Sixth Form Tutor with extensive Key Stage 4 and 5 experience, and has worked as an AQA examiner, giving her valuable insight into assessment standards and what students need to succeed.
Underpinning this is a strong foundation in applied science built across a range of industry roles. Samantha has held scientific roles at John Smith's Brewery, Yorkshire Water and WasteCare, where she led technical projects, drove operational efficiencies and ensured compliance with industry standards. Across these roles she has first-hand experience of how scientific knowledge translates into measurable outcomes in professional and commercial environments.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
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