Enzymes are amino acids and proteins that speed up chemical reactions. they
either build things or take things apart as needed . they are small (since they can work in a small
thing such as a cell) and their shape is the shape needed for substrates to fit in . enzymes are
molecules that are organic in nature and catalyze specific chemical reactions. they are mainly
built from hydrogen, carbon, and oxygen. they are proteins and also include other
macromolecules such as carbohydrates and lipids
Enzymes have an area with a very particular shape. when a molecule of the right
chemical (substrate) for that enzyme comes along. it will fit exactly into the shape. the area of
particular shape is called the active site of the enzyme. the enzyme then speeds up the
chemical reactions on the substrate (kind of like a catalyst). a catalyst is any substance which
makes a chemical reaction go faster.
Cellulose is an organic compound and is a polysaccharide. it is also found in plant
cells (especially in the cell wall of the plant cell) . cellulase, on the other hand is an enzyme that
catalyzes the hydrolysis. cellulase also splits cellulose and can feed additives, production of
juices and other beverages.
Pectin is the substance that holds together plant cells. it is also a general term for
enzymes, for enzymes such as pectinase. pectinase is an enzyme that breaks down pectin in
materials.
statement of problem: in this lab we will determine how enzymes affect the amount of apple juice produced from applesauce we will test pectinase cellulase and a combination of both of of the enzymes and then finally we will use water ( which will be used as the controlled variable). hypothesis: If we mix pectinase and cellulase then we will make the most applejuice , because the combination of the two chemicals will cause reactions and will yeild more juice than one enzyme.
Experimental design