Bromelain and Gelatin Experiment Analysis

The video tutorial explores the properties of bromelain, an enzyme in pineapples, and its effect on gelatin. It guides viewers through preparing pineapple samples, setting up test tubes, and conducting an experiment to observe how bromelain prevents gelatin from setting. The process includes boiling samples, preparing gelatin, and recording observations on gelatin consistency.

What is the role of bromelain in the experiment?

• To enhance the flavor of gelatin

• To break down gelatin proteins

• To preserve the pineapple samples

• To change the color of gelatin

Why is it important to rinse the scalpel between samples?

• To prevent the scalpel from rusting

• To avoid cross-contamination between samples

• To ensure the scalpel remains sharp

• To clean the scalpel for the next experiment

How many types of pineapple samples are used in the experiment?

• Three

• Seven

• Nine

• Five

What is the purpose of placing some pineapple samples in a boiling water bath?

• To sterilize the samples

• To enhance the enzyme activity

• To deactivate the enzyme

• To change the texture of the samples

How is the gelatin prepared for the experiment?

• By mixing with cold water

• By adding powder to boiling water

• By freezing it

• By blending with pineapple juice

What indicates that the gelatin has set properly in the control tube?

• The gelatin emits a smell

• The gelatin becomes liquid

• The gelatin changes color

• The gelatin gels firmly