Enzymes and Their Functions

The video introduces enzymes using a Pac-Man analogy, explaining their role in speeding up reactions by binding substrates at their active sites. It highlights the enzyme lactase, which breaks down lactose, and discusses lactose intolerance. The video also covers the role of various enzymes in digestion, the importance of cofactors, and the effects of environmental changes on enzyme activity, leading to denaturation. It concludes by emphasizing the significance of enzymes in body processes and medical research.

What childhood game is used to explain the function of enzymes?

• Tetris

• Space Invaders

• Mario Kart

• Pac-Man

What is the term for the specific area on an enzyme where substrates bind?

• Binding site

• Active site

• Enzyme pocket

• Reaction site

What happens to the active site during induced fit?

• It becomes inactive

• It changes shape to fit the substrate

• It releases the substrate

• It breaks down

Which enzyme is responsible for breaking down lactose?

• Amylase

• Protease

• Lipase

• Lactase

What is the condition called when someone cannot efficiently break down lactose?

• Sugar allergy

• Protein deficiency

• Gluten intolerance

• Lactose intolerance

What is the role of enzymes in chemical reactions?

• They stop reactions

• They slow down reactions

• They have no effect

• They speed up reactions

Which enzyme breaks down starch in the digestive system?

• Protease

• Amylase

• Lactase

• Lipase

What are cofactors and coenzymes?

• Types of enzymes

• Helpers for enzymes

• Enzyme inhibitors

• Substrates

What happens to an enzyme when it becomes denatured?

• It speeds up reactions

• It becomes more active

• It binds more substrates

• It changes shape and loses function

What environmental factor can cause an enzyme to become denatured?

• Extreme pH or temperature

• Ideal temperature

• Low substrate concentration

• Neutral pH