When the body exceeds the storage capacity of ferritin, iron is stored as which compound?Multiple choice question.hemoglobinhemosiderinlysosomes

Breakdown the Problem

1. Identify the context: The question pertains to iron storage in the body.
2. Understand the options: Analyze what each option means in relation to iron storage.

Relevant Concepts

1. Ferritin: A protein complex that stores iron in a soluble form and releases it in a controlled manner.
2. Hemosiderin: A complex of iron that is less soluble than ferritin and is formed when the body has excess iron.
3. Hemoglobin: A protein in red blood cells that carries oxygen, not a storage form of iron.
4. Lysosomes: Cellular organelles that break down waste materials, not specifically related to iron storage.

Analysis and Detail

1. Hemoglobin does not store excess iron; it is primarily responsible for oxygen transport.
2. Lysosomes are involved in degradation processes and do not specifically function as iron storage.
3. When the body's ferritin capacity is exceeded, excess iron is stored as hemosiderin, which can become a source of iron when needed but is less readily accessible than ferritin.

Verify and Summarize

Upon verifying the function of each compound related to iron in the body, it is confirmed that the proper storage compound for excess iron, when ferritin's capacity is exceeded, is hemosiderin.

Final Answer

Hemosiderin is the compound in which excess iron is stored when the body's ferritin storage capacity is exceeded.