3. Meanwhile, explain the role of an enzyme â acting like a pair of scissors to cut up large chain molecules into smaller soluble ones. Show the model/pictures of starch, protein and fat molecules again and say the scissors (amylase/protease/lipase) break them down into glucose, amino acids and fatty acids.
How to substitute baking soda for baking powder. You can substitute baking soda for baking powder, if you increase the amount of acidic ingredients in the recipe to offset the baking soda. Youâll also need much less baking soda as it is 3 times as powerful as baking powder. Youâll need about a teaspoon of vinegar or lemon juice for every 1/2 teaspoon of baking soda.
Report Abuse. Baking powder and baking soda are almost the same thing, but baking powder has a heat activated acid that causes it to produce CO2 when its in the oven. hence the term 'doulbe acting'. Powder also needs an acid to activate it. Baking soda is used mainly for adjusting the pH of a baked good.