Ib Biology Enzymes Ia

1414 WordsApr 27, 20136 Pages
Biology Enzymes IA Design Introduction: 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…show more content…
Repeat this for all of the test tubes. Use the stopwatch to count 10 minutes and observe the amount of bubbles being released from the bubbles. After 10 minutes have passed, record amount of bubbles released in each test tube. Pour the hydrogen peroxide and dump the waste material unto the sink and throw away leaf discs, rinse all the test tubes. Record all observed data. This is the experiment Repeat the experiment but instead of using red apples again, use the different vegetables that has been previously prepared. Test tube rack Test tube rack 5×1×1cm potato with 3% hydrogen peroxide 5×1×1cm potato with 3% hydrogen peroxide Test tube Test tube Labeled Diagram: Data Collection and Processing Raw Data Table: Table 1: Amount of bubbles released from each test tube Processed Data Table: Table 2: Mean and standard deviation of amount of bubbles released from each test tube Graph: *Error bars represent the uncertainty of the bubble count of the experiment. Processed Data: Sample calculation of mean amount of bubbles produced: Where: Ex = Sum of all values n = Number of Values Where: Ex = Sum of all values n = Number of Values Formula: Mean= ∈ xn Calculation (Potato): 24+19+28+17+315 = 1195 = 23.80 Mean of potato = 23.80 Sample calculation of the standard deviation of amount of bubbles produced: Where: E = Sum of X =