GCSE Biology Revision "Digestive Enzymes" скачать в хорошем качестве

GCSE Biology Revision "Digestive Enzymes"

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Don... Great deals on workbooks for schools https://www.freesciencelessons.co.uk/... In this video, we look at the specific enzymes found in the digestive system. We start by looking at the lock and key theory which explains why enzymes are specific. We then look at each of the three enzymes in digestion. This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Biology. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks. Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Image credits: Human digestive system Lozzaaa [Public domain], via Wikimedia Commons