Reading 3

What are enzymes primarily made of?

• Carbohydrates

• Proteins

• Lipids

• Nucleic acids

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What is the main function of enzymes in living organisms?

• Slow down chemical reactions

• Speed up chemical reactions

• Store energy

• Transport oxygen

What happens to an enzyme if the environmental conditions are too extreme?

• It becomes more active

• It becomes denatured

• It multiplies

• It changes color

At what temperature do human enzymes typically work best?

• 25°C (77°F)

• 37°C (98.6°F)

• 50°C (122°F)

• 0°C (32°F)

How do enzymes differ from heat as catalysts?

• Enzymes increase kinetic energy

• Enzymes lower activation energy

• Enzymes are consumed in reactions

• Enzymes are less efficient

What is the role of enzymes in the human digestive system?

• They break down proteins into amino acids.

• They break down starch into simpler sugars.

• They convert fats into energy.

• They produce vitamins.

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Why is it important for enzymes to work at specific temperatures in biofuel development?

• To prevent the fuel from freezing.

• To optimize the breakdown of biomass into usable energy.

• To make the fuel more colorful.

• To increase the weight of the fuel.

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What can studying enzyme activity at different pH levels help us understand?

• The color of enzymes.

• The size of enzymes.

• The functionality and applications of enzymes in biotechnology.

• The taste of enzymes.

In which industry are enzymes engineered to work effectively at lower temperatures?

• Food production

• Laundry detergent formulation

• Automobile manufacturing

• Textile production