Question

living organisms can incorporate ______ into their metabolism
a. nitrites
b. nitrates
c. nitrogen gas
d. ammonia

Answers

Answer
pick only one answer
Answered by GPT-4o mini
Living organisms can incorporate **b. nitrates** and **d. ammonia** into their metabolism.

- **Nitrates** can be used by plants in the process of nitrogen assimilation to form amino acids and other important molecules.
- **Ammonia** can be directly incorporated into organic compounds through various metabolic pathways.

While **nitrites** can also be used, they are usually an intermediate in the nitrogen cycle. **Nitrogen gas** (N2) is generally not usable by most organisms directly and needs to be converted into a more reactive form through processes such as nitrogen fixation.

So, if you need to choose one answer from the options given, I would suggest **b. nitrates** or **d. ammonia** as the most appropriate.
Answered by GPT-4o mini
The best answer is **d. ammonia**.

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