Question 3
the diagram below shows the detail of an experiment done in a grade 10 class. Three similar table cloths (1, 2 and 3), with identical blood stains, where washed in an enzyme-containing washing powder solution. The same washing machine was used at three different temperature, 15°C (table cloth 1), 37°C(table cloth 2), 65°C(table cloth 3). All tablecloths were washed for 10 minutes. results : (only the second cloth was completely clean), the last one still had a stain not too big, the first had a very small stain left on the cloth.
3.1 what is the purpose of this investigation?
3.2 which property of enzymes is being investigated?
3.5 what could possibly have happened with the enzyme at 15°C
3.1 The purpose of this investigation is to determine the effectiveness of enzyme-containing washing powder at different temperatures in removing blood stains from tablecloths.
3.2 The property of enzymes being investigated is their ability to break down and remove stains, specifically blood stains, from fabric.
3.3 At 15°C, the enzyme in the washing powder may have been less active or effective in breaking down the blood stains compared to at higher temperatures. Enzymes typically have an optimal temperature range in which they function most effectively, and lower temperatures may have hindered the enzyme's ability to efficiently remove the stains.