Enzymes in Biological Detergents

The video explains enzymes as biological catalysts that speed up reactions without being consumed. Enzymes are specific to substrates, similar to a key fitting a keyhole. The video discusses enzyme naming conventions and their use in biological detergents, which contain proteases and lipases to break down stains. It highlights the advantages of these detergents, such as energy efficiency and environmental friendliness, while explaining why cellulase is not used due to its potential to damage cotton clothing.

What is the primary role of an enzyme in a biological reaction?

• To speed up the reaction without being consumed

• To be consumed in the reaction

• To slow down the reaction

• To change the reaction's products

Which analogy is used to describe the function of a catalyst?

• A mechanic fixing a car

• A chef cooking a meal

• A person helping you ride a bicycle

• A teacher in a classroom

What is the function of the active site in an enzyme?

• To change the enzyme's shape

• To bind with any molecule

• To store energy

• To bind with a specific substrate

What suffix is commonly found in the names of enzymes?

• -ase

• -ose

• -ine

• -ate

Why are proteases and lipases used in biological detergents?

• They add fragrance to the detergent

• They make clothes softer

• They bleach the clothes

• They help in breaking down protein and fat stains

Why is cellulase not typically added to biological detergents?

• It can damage cotton clothing

• It is not effective on stains

• It does not work in water

• It is too expensive

What is one advantage of using biological detergents over traditional ones?

• They require boiling water

• They are more expensive

• They are less effective at cleaning

• They are energy efficient

At what temperature do enzymes in biological detergents typically operate optimally?

• 60°C

• 40°C

• 20°C

• 0°C

What happens to enzymes at high temperatures?

• They become more effective

• They denature and lose their shape

• They multiply

• They change color

Why are enzymes in biological detergents considered environmentally friendly?

• They are made from synthetic materials

• They are biodegradable

• They do not dissolve in water

• They are non-biodegradable