Block 1: Enzyme Lab Design by Wendy Perkins

madi, julia, kelsey

2017-01-27 14:40:06 UTC

research question: what effect does temperature of water have on the catalyses of potatoes
independent: temp of water
control: potatoes in room temp water
null: the temp of water has no effect on the catalyst of potatoes.
alt.: the temperature of water will effect the rate of catalyse of potatoes.
dependent: rate of catalyst
constant: amount of water, amount of hydrogen peroxide, type of potatoes
* measure of catalyses based on height of bubbles/fizz that occurs

CAR

2017-01-27 14:40:08 UTC

Cat, Akshita, and Riley! <3

Research Question: How do different sources of catalase affect the reaction rate of hydrogen peroxide breakdown?

Independent Variable: Source of catalase

Constant: Peroxide

Dependent Variable: Reaction Rate (# of bubbles)

Hypothesis null: There will be no variation in reaction from the different sources of catalase

Hypothesis alternate: There will be variation in reaction from the different sources of catalyses.

Procedure:
(1) Distribute equal amounts of each sources of catalase
(2) Fill 4 test tubes with equal amounts of peroxide
(3) Pour each vial of peroxide into a source of catalase - keep one separate for control group
(4) Record rate of hydrogen peroxide breakdown every minute
(5) Record hydrogen peroxide breakdown rate on a scale of 1 - 5
(6) Construct a claim

Megan Ethan Cheyenne and Jacob

2017-01-27 14:40:09 UTC

Question: What effect does temperature have on catalyses?
Procedure:
Step one- measure 5 mL of chicken's blood into 6 different test tubes.
Step two- put two tubes in cold water, two tubes in hot water, and leave two tubes in room temperature hot water.
Step three- put an equal amount of hydrogen peroxide in each of the 6 tubes
Step four- "measure" the reaction and record the data
Independent variable: temperature
Dependent variable: the reaction (bubbles)
Constants: blood, hydrogen peroxide, scientists, test tube
Hypotheses: Null- there will be no differences in the reactions between the different temperatures
Alternative- there will be differences in the reactions between the different temperatures

Stuart, Quincy, Brent, Kaia

2017-01-27 14:42:57 UTC

Research Question: What effect do different levels of pH have on the catalyses?
Independent Variable: Various pH levels
Dependent Variable: Oxygen levels produced as a product of the reaction
Constants: Type of Potato, pH7, amount of acid/base, amount of hydrogen peroxide
Hypothesis(Null): No difference between levels of pH
Hypothesis(Alternate): As pH levels become more extreme, the less oxygen gas would be present as a product of the reaction
Procedure:
-Divide potatoes into 5 equally sized pieces
-Measure the mass of each piece
-Place into individual test tubes
-Add equal amount of acid/base to different test tubes
-Let test tubes sit for 30 mins.
-Remove remaining acid/base
-Add equal amount of H2O2 to each test tube
-Gather data as reaction occurs
-Analyze collection of data