AP Biology Enzyme Kinetics Lab Report - Scribd

Anthony Araracap Period 4 AP Biology Enzyme Action: Testing Catalase Activity Lab ..

AP Biology Enzyme Kinetics Lab Report ..

Although we don't actually see the workers doing their job, we can inferthat if the store is using large quantities of reactants (dough and toppings)and / or making large numbers of end products (pizzas) that the workers(enzymes) must be very active.

Although you will perform the laboratory exercise working as groups oftwo or three students, make your report an individual effort.

Enzyme Kinetics Lab Preparation Page

This lab is a relatively simple lab which shows the specificity of enzymes based on shape. You will need to purchase lactaid and glucose test strips. I suggest the glucose test strips from Science Kits and Boreal Labs, which are easy to use.

We experimented by boiling the lactase for five, ten, and fifteen minutes. Thirty minutes worked for us. We suggest that you try boiling the enzyme before the lab, adding some milk (source of lactose) and test for glucose. If glucose is present, boil the lactase for a longer period of time.

Enzymes Lab Report: Home; Introduction; Methods; ..

In this laboratory, I observed the process by which salivary amylase, an enzyme
secreted by the salivary glands in the mouth, breaks starch down into maltose.

This requires a relatively straightforward experiment with only a couple of
indicators, some test tubes, and a starch source.

Enzyme Lab Report Essay Examples - New York essay

Before you begin this lab, review pH. Recall that pH is the measure of the acidity or alkalinity of a solution. An acidic solution has many hydrogen ions (H+) and a pH below 7. An alkaline, or basic, solution has very few hydrogen ions and a pH above 7. A neutral solution has a pH of 7.
Recall that the substrate is the molecule that the enzyme acts on, and the products are the molecules produced by the reaction. Review why enzymes are reusable. Under certain conditions enzymes are denatured. An enzyme is denatured when the protein molecule loses its proper shape and cannot function. Some things that can denature an enzyme are high temperatures, extremes of pH, heavy metals, and alcohol.

This lab sonsists of four activities:

Effects of pH on Enzymes Experiment Purpose ..

Overview: What would happen to your cells if they made a poisonous chemical? You might think that they would die. In fact, your cells are always making poisonous chemicals. They do not die because your cells use enzymes to break down these poisonous chemicals into harmless substances. Enzymes are proteins that speed up the rate of reactions that would otherwise happen more slowly. The enzyme is not altered by the reaction. You have hundreds of different enzymes in each of your cells. Each of these enzymes is responsible for one particular reaction that occurs in the cell.
In this lab, you will study an enzyme that is found in the cells of many living tissues. The name of the enzyme is catalase (KAT-uh-LAYSS); it speeds up a reaction which breaks down hydrogen peroxide, a toxic chemical, into 2 harmless substances--water and oxygen. The reaction is as follows:
2H2O2 ----> 2H2O + O2
This reaction is important to cells because hydrogen peroxide (H2O2) is produced as a byproduct of many normal cellular reactions. If the cells did not break down the hydrogen peroxide, they would be poisoned and die.

Effects of pH on an Enzyme; Osmosis Lab ..

This lab will examine the specificity of an enzyme (lactase) to a specific substrate (lactose). Students will observe the actions of the enzyme and how shape is important to enzyme reactions.