Useful Reactions

• Fermentation is a process involved in making beers and wines in which sugars are converted to alcohol
• Yeast grows on the skin of grapes. If the skins are broken, the yeast feeds on the glucose in grape juice, turning it into ethanol and carbon dioxide
• Carbon dioxide is produced in baking bread by yeast fermenting the dough, causing it to rise and become soft. During baking, the yeast is killed and the alcohol is evaporated.
• A catalyst is a substance that speeds up a reaction without being used
• Ammonia is produced by mixing hydrogen and nitrogen gases under pressure with hot iron. It is used in cleaning fluids, fertilizers, and plastics
• Leaving crushed grapes in a sealed container can be dangerous due to excess moisture accelerating spoilage and restricting airflow
• An enzyme speeds up reactions in living things, functioning like a catalyst. The enzyme present in yeast is Zymase
• Another example of an enzyme is Amylase, pepsin, Trypsin, Lipase, which speed up the digestive process in the body