Question

Choose the correct option for the following question. You may choose more than one option.

Why is nitrogen important to us?

• A. It forms molecules like proteins.
• B. It forms molecules like DNA and RNA
• C. We inhale nitrogen.
• D. It makes up to 78% of our atmosphere.

Answer 1

Answer: (A), (B)

The correct options are
A

It forms molecules like proteins.

B

It forms molecules like DNA and RNA

Nitrogen is the most abundant gas in our atmosphere. It makes up to 78% of our atmosphere and is also a part of many molecules essential to life like proteins, nucleic acids (DNA and RNA) and some vitamins. It is also found in other biological important compounds also such as alkaloids and urea. Thus nitrogen is very important to us.