Which substances contain nitrogen? A. proteins B. carbohydrates and fats C. proteins and carbohydrates

asked Feb 14, 2021 121k views

5 votes

Which substances contain nitrogen?

A. proteins
B. carbohydrates and fats
C. proteins and carbohydrates

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3 votes

Answer:

A. Proteins

Step-by-step explanation:

Urea is a by product of protein digestion.

Marcoow answered Feb 15, 2021

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1 vote

Answer:

protiens

Step-by-step explanation:

in protiens in cells have nightogen

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