Exploring Enzymes Quiz

What is the primary role of an enzyme in biochemical reactions?

• To slow down reactions

• To act as a reactant

• To speed up reactions

• To change the reaction products

Which safety equipment is recommended for this experiment?

• Lab coat and mask

• Sunglasses and a hat

• Gloves, goggles, and an apron

• Helmet and boots

What is the first step in preparing the gelatin for the experiment?

• Boil the pineapple

• Mix gelatin with cold water

• Add gelatin to boiling water

• Freeze the gelatin

What happens to the gelatin when fresh pineapple is placed on it?

• It becomes more solid

• It liquefies

• It remains unchanged

• It changes color

Why does cooked pineapple not break down the gelatin?

• It contains too much water

• The gelatin is too firm

• The enzymes are deactivated by heat

• It lacks enzymes

What is the main protein found in gelatin?

• Keratin

• Collagen

• Elastin

• Myosin

What is the function of bromelain in pineapple?

• To digest proteins

• To add color

• To sweeten the fruit

• To preserve the fruit

What is the effect of bromelain on peptide bonds?

• It strengthens them

• It breaks them down

• It changes their color

• It makes them longer

What is a practical application of bromelain outside of this experiment?

• As a preservative

• As a sweetener

• As a meat tenderizer

• As a food coloring

How can viewers share their experiment results with the hosts?

• By mailing them

• By sharing on Facebook or Google+

• By calling them

• By sending a postcard