Hemoglobin, cytochromes, and myoglobin all containMultiple Choiceselenium.zinc.iron.iodine.
Question
Hemoglobin, cytochromes, and myoglobin all contain
- Multiple Choices
- selenium.
- zinc.
- iron.
- iodine.
Solution
Breakdown of the Problem
- Identify the common elements found in hemoglobin, cytochromes, and myoglobin.
- Analyze the function and composition of each protein related to the choices provided.
Relevant Concepts
- Hemoglobin: A protein in red blood cells that carries oxygen.
- Myoglobin: A protein that stores oxygen in muscle cells.
- Cytochromes: Proteins that play a key role in the electron transport chain and contain heme groups.
Analysis and Detail
- Hemoglobin and myoglobin both primarily rely on iron to bind oxygen.
- Cytochromes also contain iron within their heme groups, which is crucial for their function in electron transport.
Verify and Summarize
- Selenium, zinc, and iodine do not have the same role in the oxygen transport and storage mechanisms as iron does in hemoglobin, myoglobin, and cytochromes.
Final Answer
The common element contained in hemoglobin, cytochromes, and myoglobin is iron.
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