Lactase and enzyme specificity
Compare glucose measurements in treated and untreated samples using an assay compatible with the chosen preparation and substrate. Control for glucose already present.
View the enzyme at S&T ↗A-level and college enzyme investigations.
Move from observing a reaction to designing a defensible experiment. Enzyme investigations can support post-16 work on initial rates, concentration effects, measurement uncertainty and the relationship between biochemical processes and biotechnology.
Explore the enzyme collection ↗Enzyme experiment ideas
Amylase and glucoamylase comparisons
Plan comparisons between starch processing and glucose release. A starch endpoint and a glucose measurement answer different questions; select readouts carefully.
View the enzyme at S&T ↗Cellulase and plant biomass
Explore the effect of substrate choice on enzymatic conversion. Defined substrates simplify interpretation; raw feedstocks introduce additional variables.
View the enzyme at S&T ↗Invertase and sugar conversion
Investigate sucrose hydrolysis with a suitable glucose or reducing-sugar measurement. Distinguish the enzyme’s substrate from the products detected by the assay.
View the enzyme at S&T ↗Plan a meaningful practical
Use preliminary trials to select a measurable response and a workable observation interval. Keep substrate and enzyme quantities consistent when comparing another variable. Distinguish endpoint measurements from initial rates, include appropriate blanks and report limitations alongside the conclusion.
Choose kits and supplies for your teaching lab
The ProStar 3-enzyme kit combines amylase, cellulase and glucoamylase. The 7-enzyme kit broadens the collection to include lipase, pectinase, protease and xylanase. Supporting reagents, substrates and protocols are planned separately. Ask S&T about a department quotation and product documentation.
Investigation ideas, not a complete practical protocol. Check product-specific instructions, SDS, assay compatibility and your institution’s assessment before use.