Enzyme Function and Properties

This video tutorial introduces the concept of metabolism, focusing on enzymes. It covers the components of enzymes, such as apoenzim and prosthetic groups, and discusses their properties, including specificity and function as biocatalysts. The tutorial also examines factors affecting enzyme activity, such as temperature, pH, inhibitors, and activators. Practical applications of enzyme knowledge are explored, and the session concludes with a summary of key points.

What are the two main components of an enzyme?

• Apoenzyme and prosthetic group

• Protein and lipid

• Carbohydrate and coenzyme

• Mineral and vitamin

Which of the following is an example of a coenzyme?

• Potassium

• Sodium

• Vitamin B1

• Calcium

What happens to enzymes at high temperatures?

• They become more active

• They undergo denaturation

• They change their specificity

• They increase in number

Enzymes are known to work on:

• Any available substrate

• Only proteins

• Specific substrates

• All types of molecules

Which of the following is NOT a property of enzymes?

• They are required in small amounts

• They are proteins

• They work on any substrate

• They act as biocatalysts

Which factor does NOT affect enzyme activity?

• Color

• pH

• Temperature

• Inhibitors

What is the role of an activator in enzyme activity?

• To change the enzyme's structure

• To inhibit enzyme function

• To activate enzyme function

• To denature the enzyme

Which enzyme works best in an acidic environment?

• Lipase

• Lactase

• Pepsin

• Amylase

What is the optimal temperature for Lactobacillus bulgaricus enzyme activity?

• 20°C

• 30°C

• 40°C

• 50°C

What will be discussed in the next session?

• Enzyme components

• Enzyme mechanisms and types of inhibitors

• Factors affecting enzyme activity

• Enzyme properties