Which biomolecule has carbon in the biosphere?
Correct answer: C. Cellulose
- A. Chitin
- B. Starch
- C. Cellulose
- D. Glycogen
Explanation
Cellulose is the correct answer because it is the most abundant organic polymer on Earth. It forms the cell walls of plants, which are present in vast quantities, making it a major component of the carbon found in the biosphere. This abundance of cellulose in plant cell walls contributes significantly to the Earth's carbon cycle.Chitin, though abundant in certain organisms like arthropods and fungi, is not as widespread as cellulose. Starch, while an important energy storage molecule in plants, does not contribute as extensively to the biosphere's carbon. Glycogen, being primarily found in animals, is not as prevalent as cellulose in the biosphere.
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