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.
Baking soda: The main ingredient in baking powder, baking soda is also used when there is acid (buttermilk or sour cream, for example) in a recipe. Always mix with other dry ingredients before adding any liquid, since leavening begins as soon as soda comes in contact with liquid.