Question

1. what is the function of hemoglobin?
2. how does the shape of a protein relate to its job?

Explanation:

• Question 6: Hemoglobin is a protein in red blood cells. Its main function is to transport oxygen from the lungs to the body's tissues and then transport carbon dioxide from the tissues back to the lungs for exhalation.
• Question 7: Proteins have specific three - dimensional shapes. The shape of a protein is crucial for its function. For example, enzymes (which are proteins) have active sites with specific shapes that fit only certain substrates. If the shape of a protein is altered (denatured), it may not be able to perform its function properly.

Answer:

• 6. Hemoglobin transports oxygen to tissues and carbon dioxide away from tissues.
• 7. The specific shape of a protein allows it to interact with specific molecules (e.g., substrates for enzymes) to perform its function; a change in shape can impair function.