Bromelain is a proteolytic enzyme an enzyme that digests proteins found in fresh pineapple. It is often used to treat muscle injuries and as a digestive aid. Bromelain is a natural anticoagulant that works by breaking down the blood-clotting protein fibrin.
Most of our labs this year are being done with our co-op, but there are some that we will need to do at home. We just can't fit all of Apologia's labs into our 20 weeks of co-op classes.
During break we decided to do the experiments from Apologia Biology Module 5.
We had skipped these labs because co-op had scheduled them labs to be completed at home during Fall break, but we were behind the class when Fall break arrived and decided to skip them for the time being.
When our school routine resumes next week, we'll be working through Module 8, so this was a perfect time to squeeze in the labs we had skipped.
However, I think my teens were a bit skeptical that the sugar really would dissolve completely in the water without being mixed.
We did have one minor modification— We had no plastic wrap, so we sealed our bowl inside a zippered bag. The idea was that no moisture would escape, and I don't think it altered our results. When we came back to check two hours later, they completely unfolded the napkin— no sugar to be seen.
They even felt the napkin to see if you could feel any sugar granules! Did the water taste sweet? We pureed a large chunk of pineapple in the food processor, made the jell-o, and I left the three teens to finish making their two experiment samples and the control sample.
It wasn't long before I thought that something had gone really wrong in the kitchen. It smelled like something was burning! When I went to check on them, Judah had pineapple in a pan on the stove and assured me that it was supposed to smell that way.
I guess that's what mom gets for not reading the experiment beforehand. We put them in the refrigerator until the next day. Sure enough, the next day we found that the jell-o with the heated pineapple did not gel, while the other two were nicely set.
It's really interesting to watch this one in progress! The series of videos below show what happens when you dissolve an egg's shell and then how substances can go through the semipermeable membrane that is left. We did a short video on each day of the experiment to show you each step and its results.
Be sure to come back and have a look at it. Eventually, there were so many bubbles that the water had a foam on top.The complete – and correct – recipe for ‘pineapple from zucchini’ is: Peel and shred two quarts of zucchini squash, add one-half can (23 ounces) of unsweetened pineapple juice, three-fourths cup of lemon juice and one and one-half cups of sugar.
Enzyme Catalysis Lab Report Pre-lab Questions: 1. Write a balanced chemical equation with state symbols for the reaction catalyzed by peroxidase.
2H 2O 2 2H 2O + O 2 (4H 1 4O) (4H + 2O + 2O) 2. What is the substrate(s) of this reaction? What is the catalyst? Substrate = H 2O. lab report on pineapple and jello. Topics: Enzyme, Banana Oil Lab Report Jesse Bradford 7/10/14 MTWR Section Introduction In the banana oil lab we began with isopentyl alcohol + acetic acid isopentyl acetate + Water.
We needed for this experiment a hot plate, clamps, pipette, 5mL vial, caps, hoses and a . Nevertheless, at the beginning part of the lab, the result clearly supported our hypothesis to be correct as the test tube with the lowest concentration of sugar produced the least amount of carbon dioxide, and the test tube with the highest concentration of sugar produced the most amount of carbon dioxide.
Place the pineapple in separate bowls to avoid cross-contamination. Place the cubed of pineapple on the slabs of jello, and note whether the jello is liquefying beneath the pineapple.
Record your data.
Enzymes: What’s in your spit? Student Version In this lab students will investigate a few of the different enzymes from our body. You will learn how these enzymes work and how their activity is dependent on factors such as heat, pH, and.