Questions: Which of these statements is true about isomers? (check all that apply) They have the same chemical formula but different structure They can perform the same functions and are biologically interchangeable Even a small change in structure can affect the function

Solution Steps

To determine which statements about isomers are true, we need to understand the definition and characteristics of isomers:

1. Statement 1: "They have the same chemical formula but different structure."

   • Isomers are compounds that have the same molecular formula but differ in the arrangement of atoms. This is a fundamental characteristic of isomers.

2. Statement 2: "They can perform the same functions and are biologically interchangeable."

   • Isomers often have different physical and chemical properties due to their different structures. This can lead to different biological activities, meaning they are not always biologically interchangeable.

3. Statement 3: "Even a small change in structure can affect the function."

   • A small change in the structure of a molecule can significantly impact its function, especially in biological systems. This is true for isomers, as their different structures can lead to different functions.

• Statement 1 is true because it accurately describes the fundamental nature of isomers.
• Statement 2 is false because isomers can have different functions and are not necessarily biologically interchangeable.
• Statement 3 is true because structural changes in isomers can affect their function.

Final Answer