Grade 9 Enzymes and their reactions 2C

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in living organisms without being consumed in the process.

Front

What is the importance of an enzyme's 3D shape?

Back

The 3D shape of an enzyme is crucial because it determines the enzyme's specificity for its substrate and its overall functionality.

Front

Do enzymes get used up in chemical reactions?

Back

No, enzymes are not used up in chemical reactions; they can be reused multiple times.

Front

What is a substrate in the context of enzymes?

Back

A substrate is the substance that fits into the active site of an enzyme and is transformed into products during a chemical reaction.

Front

What is the optimal temperature for enzyme activity?

Back

The optimal temperature is the temperature at which an enzyme works most efficiently, often around 30°C for many enzymes.

Front

What are the products of the reaction involving lipase and fats?

Back

The products are fatty acids and glycerol.

Front

What factors can affect enzyme activity?

Back

Both temperature and pH can significantly affect enzyme activity.

Front

What is the active site of an enzyme?

Back

The active site is the specific region of an enzyme where the substrate binds and the reaction occurs.

Front

What happens to enzymes at high temperatures?

Back

At high temperatures, enzymes can denature, losing their shape and functionality.

Front

What is denaturation in enzymes?

Back

Denaturation is the process where an enzyme loses its 3D structure due to external factors like heat or pH changes, rendering it inactive.