3. Which substrate binds to the following enzymes? a. peroxidase - b. lactase - c. pepsin - d. amylase - e. DNA polymerase -

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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**Question 3: Which substrate binds to the following enzymes?**

a. peroxidase -  
b. lactase –  
c. pepsin –  
d. amylase –  
e. DNA polymerase -  

---

**Explanation:**

This is a question aimed at understanding enzyme-substrate specificity. Enzymes are biological catalysts that speed up chemical reactions in living organisms. Each enzyme specifically binds to its substrate to catalyze a reaction. Below are the pairings for the question:

a. **Peroxidase** typically binds to peroxides (such as hydrogen peroxide) to catalyze their breakdown.  
b. **Lactase** binds to lactose, a disaccharide sugar found in milk, to break it down into glucose and galactose.  
c. **Pepsin** binds to proteins, breaking them down into smaller peptides in the stomach.  
d. **Amylase** binds to starches (polysaccharides) and catalyzes their breakdown into simpler sugars like maltose and glucose.  
e. **DNA polymerase** binds to DNA nucleotides to synthesize a new DNA strand during replication.  

This content helps in grasping the fundamentals of enzyme-substrate interactions, which is crucial for understanding biochemical processes in biology.
Transcribed Image Text:**Question 3: Which substrate binds to the following enzymes?** a. peroxidase - b. lactase – c. pepsin – d. amylase – e. DNA polymerase - --- **Explanation:** This is a question aimed at understanding enzyme-substrate specificity. Enzymes are biological catalysts that speed up chemical reactions in living organisms. Each enzyme specifically binds to its substrate to catalyze a reaction. Below are the pairings for the question: a. **Peroxidase** typically binds to peroxides (such as hydrogen peroxide) to catalyze their breakdown. b. **Lactase** binds to lactose, a disaccharide sugar found in milk, to break it down into glucose and galactose. c. **Pepsin** binds to proteins, breaking them down into smaller peptides in the stomach. d. **Amylase** binds to starches (polysaccharides) and catalyzes their breakdown into simpler sugars like maltose and glucose. e. **DNA polymerase** binds to DNA nucleotides to synthesize a new DNA strand during replication. This content helps in grasping the fundamentals of enzyme-substrate interactions, which is crucial for understanding biochemical processes in biology.
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