Question

Which element is necessary to form a protein molecule but not a carbohydrate molecule?
Responses

Oxygen
Oxygen

Nitrogen
Nitrogen

Hydrogen
Hydrogen

Carbon
Answered by GPT-4o mini
The element that is necessary to form a protein molecule but not a carbohydrate molecule is **Nitrogen**. Proteins are made up of amino acids, which contain nitrogen, while carbohydrates do not have nitrogen in their structure.
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