The effect of pH on the rate of an enzyme reaction: plan
I can write a testable prediction and plan an investigation into the effect of changing pH on the rate of an enzyme reaction.
The effect of pH on the rate of an enzyme reaction: plan
I can write a testable prediction and plan an investigation into the effect of changing pH on the rate of an enzyme reaction.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Planning an investigation into the effect of pH on the rate at which amylase enzyme breaks down starch into maltose
- Writing an aim for the investigation, and a testable prediction
- Identifying independent and dependent variables, and which factors to control
- Planning a method, to include use of iodine in continuous sampling to indicate when all starch has been broken down
- Identifying hazards and risks, and how to limit them
Keywords
PH - A measure of how acidic or alkaline a solution is.
Rate of reaction - How fast a chemical reaction occurs.
Starch - A carbohydrate, which is a polysaccharide (a polymer of sugar).
Amylase - An enzyme that breaks down starch into maltose (a type of sugar).
Continuous sampling - A method that involves taking regular and frequent samples.
Common misconception
Misconceptions mixing aim and prediction or leaving them vague, writing a method which is unclear, and analysing hazards and their risks.
Approaches for stating aims and predictions, writing a method and dealing with variables, and analysing hazards and their risk are all covered with examples and practice tasks.
To help you plan your year 10 biology lesson on: The effect of pH on the rate of an enzyme reaction: plan, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 biology lesson on: The effect of pH on the rate of an enzyme reaction: plan, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 biology lessons from the Biological molecules and enzymes unit, dive into the full secondary biology curriculum, or learn more about lesson planning.
Equipment
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
something that may cause harm
the harm that may be caused
an action taken to reduce the potential for harm
