What does decay mean?
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What is moisture?
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{"type":"multi-choice","id":"7114","dataJson":{"type":"multi-choice","slide_id":40017,"key":7114,"prompt":"\u003cp\u003eWhat is moisture?\u003c/p\u003e","validResponse":[7684],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"To take away or alter the natural qualities of.","value":7683,"fileboyId":"35deb47d-4608-4965-8c1d-cb336b850ddf"},{"label":"A biological catalyst and is almost always a protein which speeds up the rate of a specific chemical reaction in the cell.","value":7686,"fileboyId":"d0b69ecd-5e7c-4af7-9291-3fa0edbd12a9"},{"label":"Water or liquid diffused in a small quantity as vapour.","value":7684,"fileboyId":"f4d2b508-d7a7-4924-868b-99e269b2bc11"},{"label":"An animal which feeds on dead organic material, especially plant detritus.","value":7685,"fileboyId":"132defeb-3d2c-434a-96c5-9fba664fe711"},{"label":"To rot or decompose through the action of bacteria and fungi.","value":7682,"fileboyId":"a4207b21-d7ef-4411-bcc7-ea652dde4ee6"}],"question_data":{"body":"What we'll be looking at is not strictly decay but it should give results that approximate to what we would see with decay. We start by labelling a test-tube lipase. We then use a pipette to place five centimetres cubed of lipase solution into the test tube. ","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/6159f1ed-362f-4de5-bb3f-6db73772b0bc?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
What is an enzyme?
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{"type":"multi-choice","id":"7116","dataJson":{"type":"multi-choice","slide_id":40021,"key":7116,"prompt":"\u003cp\u003eWhat is an enzyme?\u003c/p\u003e","validResponse":[7686],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"Water or liquid diffused in a small quantity as vapour.","value":7684,"fileboyId":"f4d2b508-d7a7-4924-868b-99e269b2bc11"},{"label":"An animal which feeds on dead organic material, especially plant detritus.","value":7685,"fileboyId":"132defeb-3d2c-434a-96c5-9fba664fe711"},{"label":"A biological catalyst and is almost always a protein which speeds up the rate of a specific chemical reaction in the cell.","value":7686,"fileboyId":"d0b69ecd-5e7c-4af7-9291-3fa0edbd12a9"},{"label":"To take away or alter the natural qualities of.","value":7683,"fileboyId":"35deb47d-4608-4965-8c1d-cb336b850ddf"},{"label":"To rot or decompose through the action of bacteria and fungi.","value":7682,"fileboyId":"a4207b21-d7ef-4411-bcc7-ea652dde4ee6"}],"question_data":{"body":"At the same time, we start a timer. At this point the enzyme lipase will start to break down fat molecules in the milk. This releases fatty acids, and this causes the milk solution to become acidic.\n\n","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/22482cfa-6602-4fac-a77f-5957439a27e1?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
What does denature mean?
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{"type":"multi-choice","id":"7113","dataJson":{"type":"multi-choice","slide_id":45497,"key":7113,"prompt":"\u003cp\u003eWhat does denature mean?\u003c/p\u003e","validResponse":[7683],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"An animal which feeds on dead organic material, especially plant detritus.","value":7685,"fileboyId":"132defeb-3d2c-434a-96c5-9fba664fe711"},{"label":"A biological catalyst and is almost always a protein which speeds up the rate of a specific chemical reaction in the cell.","value":7686,"fileboyId":"d0b69ecd-5e7c-4af7-9291-3fa0edbd12a9"},{"label":"To rot or decompose through the action of bacteria and fungi.","value":7682,"fileboyId":"a4207b21-d7ef-4411-bcc7-ea652dde4ee6"},{"label":"Water or liquid diffused in a small quantity as vapour.","value":7684,"fileboyId":"f4d2b508-d7a7-4924-868b-99e269b2bc11"},{"label":"To take away or alter the natural qualities of.","value":7683,"fileboyId":"35deb47d-4608-4965-8c1d-cb336b850ddf"}],"question_data":{"body":"That's because the enzyme denatures at higher temperatures. In terms of decay, decomposing microorganisms work faster in warm conditions but not in hot conditions. As we've seen, this is because their enzymes denature when the temperature is too high.","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/8ffb0f85-dc30-44a9-8571-fdf1b7170f90?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
What is a detritivore?
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{"type":"multi-choice","id":"7115","dataJson":{"type":"multi-choice","slide_id":40016,"key":7115,"prompt":"\u003cp\u003eWhat is a detritivore?\u003c/p\u003e","validResponse":[7685],"use_data":false,"question_body":"","question_video_url":"","question_fileboy_image_id":"","options":[{"label":"To take away or alter the natural qualities of.","value":7683,"fileboyId":"35deb47d-4608-4965-8c1d-cb336b850ddf"},{"label":"Water or liquid diffused in a small quantity as vapour.","value":7684,"fileboyId":"f4d2b508-d7a7-4924-868b-99e269b2bc11"},{"label":"An animal which feeds on dead organic material, especially plant detritus.","value":7685,"fileboyId":"132defeb-3d2c-434a-96c5-9fba664fe711"},{"label":"To rot or decompose through the action of bacteria and fungi.","value":7682,"fileboyId":"a4207b21-d7ef-4411-bcc7-ea652dde4ee6"},{"label":"A biological catalyst and is almost always a protein which speeds up the rate of a specific chemical reaction in the cell.","value":7686,"fileboyId":"d0b69ecd-5e7c-4af7-9291-3fa0edbd12a9"}],"question_data":{"body":"In this practical we're going to investigate the effect of temperature on the decay of milk. Decay is a very slow process, so it's hard to observe that in a lesson. To get around that problem we're going to model decay by using the enzyme lipase. ","video":null,"image_url":"https://www.developingexperts.com/file-cdn/images/get/8fc44b16-5df4-4c23-9071-a637f98722a9?transform=resize:800x600;format:webp;quality:80"},"limitChoices":{"min":1,"max":1}}}
Look at the slide below to work out the answer.