Preview

Apple sauce lab

Better Essays
Open Document
Open Document
700 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Apple sauce lab
background information
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

You May Also Find These Documents Helpful

  • Satisfactory Essays

    1a. A is a substrate for the enzyme as it has the complementary shape to fit into it.…

    • 290 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Ap Biology Unit 1 Summary

    • 2660 Words
    • 11 Pages

    * Polysaccharides are monosaccharide polymers composed of several hundreds/thousands monosaccharides held together by glycosidic linkages…

    • 2660 Words
    • 11 Pages
    Powerful Essays
  • Better Essays

    Enzymes are biological catalysts. They work by lowering the activation energy needed to initiate a chemical reaction. Enzymes work within an optimal temperature and optimal pH. Enzymes are highly specific for a single substrate. The Enzyme is usually much larger in size than the substrate it binds to. In some cases, an enzyme requires something called a cofactor to begin the chemical reaction. There were four different experiments that were executed in the enzyme lab. Experiment 7.1, the first experiment, was performed to test the effect of temperature on enzymatic activity. Based on what I know about the effect of temperature on the enzymatic activity of lactase, if the lactase used in today’s lab was extracted from human cells, I hypothesize that the optimal temperature for lactase to be in is around 37 degrees Celsius, which is the average human body temperature. The second experiment performed, experiment 7.2, tested the effect of pH on enzymatic activity. Based on what I know about the effect of pH on the enzymatic activity of lactase, if the lactase used in today’s lab was extracted from human cells, I hypothesize that the optimal pH level is 7, which is the average pH level in humans. Experiment 7.3 tests enzymatic specificity. Knowing that lactase is specific for the substrate lactose, lactase will only bind to lactose and not work with the other substrate used in this experiment, maltose. The last experiment of the lab, 7.4, was done to determine the cofactors of the enzyme, lactase. I hypothesize that EDTA, a cofactor inhibitor, will have a negative effect on the reaction and lower the amount of glucose that could possibly be produced if EDTA was not present.…

    • 2988 Words
    • 12 Pages
    Better Essays
  • Good Essays

    Bio 101 Ch. 6,7 31 Quiz

    • 369 Words
    • 2 Pages

    a. The distorted shape the substrate takes when being converted by an enzyme into product…

    • 369 Words
    • 2 Pages
    Good Essays
  • Good Essays

    AQA Exam Answers

    • 969 Words
    • 4 Pages

    ii The long chains of amino acid in the enzymes are folded and twisted into specific 3D shapes called the active site. This shape allows substrate with matching shape to fit into the enzyme and bind together.…

    • 969 Words
    • 4 Pages
    Good Essays
  • Good Essays

    exam 2 study guide

    • 1530 Words
    • 7 Pages

    Provides structure in stems, trunks, roots, leaves, & skins of plants thus found in all plant foods (veg, fruits, whole grains, legumes)…

    • 1530 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Catalase Experiment

    • 1088 Words
    • 5 Pages

    The orange fruit then in this experiment had no effect on catalase activity compared to the potato. Again, the null hypotheses that states: the orange will not affect the catalase activity is accepted.…

    • 1088 Words
    • 5 Pages
    Good Essays
  • Good Essays

    8. Follow the instructions in the “Question” column to complete the virtual lab. You must test each lactose sample at all pH levels: 3,5,7,9, and 11. Record your data in Table 1 on the Lab Worksheet.…

    • 954 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    Enzymes

    • 2259 Words
    • 10 Pages

    enzyme, as well as a discussion of how structure and function of enzymes are affected…

    • 2259 Words
    • 10 Pages
    Powerful Essays
  • Good Essays

    Cell Structure

    • 844 Words
    • 4 Pages

    Plant Cells have cell walls, which makes them appear rectangular or square in shape, these structures are composed of cellulose, hemicellulose and other materials, plant cells have chlorophyll the light absorbing pigment required for photosynthesis.…

    • 844 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Enzymes: Lab Report

    • 2612 Words
    • 11 Pages

    Enzymes work by combining with reacting molecules at the active site. Each enzyme is specific to only one kind of molecule and can only bind to its specific molecule. The active site is a groove in the enzyme where the molecule will bind to; this is formed by the enzyme folding into a specific shape. When the enzyme is done and the molecules are then in the transitional state, which means the bonds are unstable and ready to be broken, the enzyme remains unchanged and can continue to bind to other molecules (Russel et al., 2010).…

    • 2612 Words
    • 11 Pages
    Better Essays
  • Better Essays

    Anatomy: Enzymes

    • 862 Words
    • 4 Pages

    Enzymes are organic catalysts, usually proteins that speed up metabolic reactions. They lower the amount of energy needed for reactions to progress in cells. In enzymatic activity, the molecules at the beginning are called substrates. Lactose metabolism is when lactose is destroyed, maintained or produced. For instance, being lactose intolerance that’s where lactose is destroyed. Metal cofactors in enzyme activity are required to function properly.…

    • 862 Words
    • 4 Pages
    Better Essays
  • Good Essays

    In this lab, Plant cells have cell walls for support outside their cell membrane and are usually…

    • 843 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Biology Worksheet

    • 647 Words
    • 3 Pages

    Cell Membrane: Lies immediately against the cell wall in plant cells/ Made of protein and phospholipids/ Selectively permeable.…

    • 647 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Ib Biology Enzymes Ia

    • 1408 Words
    • 6 Pages

    Enzymes are globular proteins, they are responsible for most of the chemical activities of a living organism. They act as catalysts, substances that affects the reaction of other substances without being destroyed or altered during the process. They are extremely efficient in the body system of living organisms, one enzyme may catalyse over a thousand chemical reactions every second. But there are certain conditions that need to be fulfilled in order for the enzymes to work. Temperature of the environment must be correct for each enzyme because different enzymes will have different temperature ranges in which they can live. pH levels in the environment must also be correct because if the environment around the enzyme is too basic or acidic, the enzyme will quickly denature.…

    • 1408 Words
    • 6 Pages
    Good Essays