Examples of Enzymes: A Comprehensive List for Biology Students

📚 Quick Study Guide

• 🧬 Enzymes are biological catalysts that speed up chemical reactions in living organisms.
• 🔑 They are highly specific, meaning each enzyme typically catalyzes only one particular reaction.
• 🌡️ Enzyme activity is affected by factors such as temperature, pH, and substrate concentration.
• ⚙️ Enzymes work by lowering the activation energy of a reaction.
• 🧪 Key enzyme types include oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases.

🧪 Practice Quiz

1. Which of the following is a primary function of enzymes?
   1. A. Providing energy for cellular processes
   2. B. Speeding up chemical reactions
   3. C. Building structural components of cells
   4. D. Transporting molecules across cell membranes
2. What term describes the specific location on an enzyme where the substrate binds?
   1. A. Active site
   2. B. Binding region
   3. C. Catalytic domain
   4. D. Substrate pocket
3. Which environmental factor does NOT typically affect enzyme activity?
   1. A. Temperature
   2. B. pH
   3. C. Substrate concentration
   4. D. Air pressure
4. Which type of enzyme is responsible for catalyzing oxidation-reduction reactions?
   1. A. Hydrolases
   2. B. Transferases
   3. C. Oxidoreductases
   4. D. Lyases
5. What is the effect of a competitive inhibitor on enzyme activity?
   1. A. It permanently denatures the enzyme.
   2. B. It binds to the active site, preventing substrate binding.
   3. C. It increases the enzyme's affinity for the substrate.
   4. D. It alters the enzyme's optimal pH.
6. Which of the following enzymes is involved in the digestion of starch?
   1. A. Lipase
   2. B. Amylase
   3. C. Protease
   4. D. Nuclease
7. What type of enzyme catalyzes the joining of two large molecules by forming a new chemical bond?
   1. A. Lyases
   2. B. Isomerases
   3. C. Ligases
   4. D. Hydrolases