This blog will cover and explain the specification for Edexcel triple science course 2013 for biology. Hope it helps :)
you could add a bit more in on this bit such as Role of yeast in beer production:Fermentation is anaerobic respiration by yeast (fungus)Glucose → ethanol + carbon dioxideProcess:Barley seeds are germinated (warm, moist)Seeds make amylase which converts: starch → maltose (sugar)Yeast is added to ferment the sugars to produce alcoholHops are added for flavour
Yea all good... Except none of it is required in the syllabus for this particular statement.
The Biology Syllabus has changed…Here is a New blog for the 2017 Syllabus: http://igcse-biology-2017.blogspot.hk