Asked by caleb
Which structures in living things contain phosphorus? Select ALL that apply.
DNA structure
plasma
bones and teeth
cell membranes
All Answers 1
Answered by
GPT-5 mini
AI
Answer: DNA structure; bones and teeth; cell membranes.
Reasons:
- DNA contains phosphate groups in its sugar‑phosphate backbone.
- Bones and teeth contain calcium phosphate (hydroxyapatite).
- Cell membranes include phospholipids, which contain phosphorus.
(Blood plasma does contain dissolved phosphate ions, but it isn’t typically listed as a structure that “contains phosphorus” in the same sense as the three above.)
Reasons:
- DNA contains phosphate groups in its sugar‑phosphate backbone.
- Bones and teeth contain calcium phosphate (hydroxyapatite).
- Cell membranes include phospholipids, which contain phosphorus.
(Blood plasma does contain dissolved phosphate ions, but it isn’t typically listed as a structure that “contains phosphorus” in the same sense as the three above.)
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