Amylase: investigate pH or temperature
Follow starch breakdown using a compatible iodine endpoint. Change one condition while controlling enzyme and substrate quantities, sampling intervals and other relevant variables.
View the enzyme at S&T ↗GCSE enzyme practicals. Clear questions. Visible evidence.
Explore enzyme activity, digestion and the effects of conditions through practical biology. Choose an enzyme preparation and compatible method that fit your course, class and institutional assessment. These investigation ideas support teaching; they are not a claim of exam-board endorsement.
Explore the enzyme collection ↗Enzyme experiment ideas
Catalase: investigate reaction rate
Use a suitable gas-production measurement to compare enzyme activity. Plan controls and repeats and consider the limitations of the measurement.
View the enzyme at S&T ↗Lipase: investigate fat hydrolysis
A suitable indicator or pH measurement can track fatty-acid release. The listed liquid lipase is an alkaline detergent preparation: assay conditions must be checked for compatibility.
View the enzyme at S&T ↗Pectinase: connect biology to juice production
Compare juice recovery from matched fruit samples with and without enzyme treatment. Discuss variation in biological material and why a fair comparison matters.
View the enzyme at S&T ↗Plan a meaningful practical
Choose the dependent variable before planning the method. Decide whether students will record an endpoint time, a quantity produced or a rate. Use repeats and discuss anomalous results. Relate the observations to enzyme structure and specificity without assuming every preparation has the same optimum conditions.
Choose kits and supplies for your teaching lab
For a single topic, choose the education amylase kit or an individual enzyme. For comparisons across substrates, explore the ProStar 3- and 7-enzyme collections. The cost calculator helps estimate product use per test, working group and student; enter your actual protocol quantities.
Investigation ideas, not a complete practical protocol. Check product-specific instructions, SDS, assay compatibility and your institution’s assessment before use.