Understanding Enzymes

The video introduces enzymes using a Pac-Man analogy, explaining their specific shape and function. Enzymes are proteins that speed up reactions by fitting perfectly with substrates. Factors like temperature and pH can denature enzymes, altering their shape and function. A real-world example of lactose intolerance is used to illustrate enzyme deficiency, where the absence of lactase prevents lactose breakdown, causing discomfort.

What game is used to illustrate the concept of enzymes and their specific shape?

• Space Invaders

• Super Mario

• Pac-Man

• Tetris

What is the term used for the specific molecule that fits into an enzyme's shape?

• Reactant

• Substrate

• Inhibitor

• Catalyst

Enzymes are primarily made of which type of biological molecule?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

How do enzymes affect chemical reactions?

• They have no effect on reactions

• They slow down reactions

• They stop reactions

• They speed up reactions

What are the two main factors that can negatively impact enzyme activity?

• Salinity and viscosity

• Pressure and humidity

• Temperature and pH

• Light and sound

What happens to an enzyme when it is denatured?

• It multiplies

• It becomes a different enzyme

• It changes shape and loses function

• It becomes more active

What is the sugar found in milk that lactose intolerant individuals cannot digest?

• Sucrose

• Fructose

• Glucose

• Lactose

What enzyme is missing in people who are lactose intolerant?

• Amylase

• Lipase

• Lactase

• Protease

What suffix is commonly found at the end of enzyme names?

• -ate

• -ine

• -ase

• -ose

Why do lactose intolerant individuals feel sick after consuming milk?

• They are allergic to milk proteins

• They are dehydrated

• They have too much lactase

• They cannot break down lactose