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Pineapple and Gelatin Enzyme Lab
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| Date | 28.05.2021 | | Size | 300 Kb. | | #56767 |
| PINEAPPLE LAB 2016 Background Information: Ask an expert. - Gelatin makes Jello a semi-solid. 1845
- Gelatin comes from bones and cartilage from pigs and cows
- Enzyme Bromelain is in Pineapple
- Vitamin C is a co-enzyme to Bromelain
- Bromelain helps relieve pain in arthritis.
- Bromelain breaks down mucus and helps those with arthritis and bronchus
Investigative Question: - How do different types of pineapple affect gelatin?
- If pineapple is put into gelatin, then ________
- LABEL YOUR LAB BOOK!
- Enzymes are
- Protein catalyst (starter) for chemical reactions cut (Catabolism) or add (Anabolism) substances in cells.
Anabolism: Catabolism in Jello - Anabolism: Starch (Carbohydrates) in the gelatin get thicker as it cools.
- 0 + 0 + 0 = 000
- Catabolism: Bromelain (protein) in pineapple break the solution apart: (prevent it from getting thick.
- 000 + Protein Enzyme = 0 + 0 + 0 +
Materials: - Fresh pineapple 2 pieces
- Canned Pineapple 2 pieces
- Gelatin (Jell-O ingredient)
- May redo with Apple, Orange or other thing you bring in. It must be authorized by the teacher
| - 4 Dixie cups
- Ice Tub
- Ice
- Stir sticks
| Procedure - 2. Put 2 pieces (about the same amount) of each type of pineapple different Cups.
- 3. Take the Dixie cup to the gelatin and pour enough to cover the pineapple
- 4. Only pour gelatin into Dixie Cup # 4.
Variables - Control Group: No pineapple, just gelation
- (Check to see if there is something else making changes in the gelation)
- Manipulative Variables: fresh and frozen pineapple, other
- Responding Variable: What happens to the gelation
- Experimental Controls: Same pineapple, same temperature, same gelation, same ___ same____
- 5. Put the cups in a pan of ice with the ice to the
- Top level of the gelatin/pineapple.
- 6. Let the Dixie cups sit in ice for up to 10 minutes checking the control every 2 minutes by swirling or stirring the Dixie cups.
- 7. Record observations on a data table.
- 8. When finished, pour semi-solid mixtures into waste beaker - NOT DOWN THE DRAIN!
- 9. Clean lab thoroughly.
- 10. Observe other groups work. Record findings
Variables - Experimental (one tested to) Variable 1:
- Responding (results) Variable:
- Experimental Controls: (same/same)
- Analysis Questions:
- Describe the differences between Cups.
- What was it like when you started and at the end?
- Does the pineapple enzyme Bromelain breakdown (catabolism) or build (anabolism) proteins?
- After looking at the data, what is the best explanation for the results of experiment?
- How could you increase validity.
- How could you increase reliability?
Conclusion - Answer to the investigative question.
- Data to support the answer to the investigative question.
- Address any trends you see in the data. (What happened?)
- Explain why the trend in data occurred.
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