Question

read the scenario. scientists are studying compounds in a newly discovered rain forest plant.the plant produces an unusual substance that local people say acts as an anesthetic. one scientist tested the substance with the chemical indicator copper (ii) sulfate and sodium hydroxide. if the test is negative, which type of macromolecule is not present in the substance? o protein o carbohydrate o lipid o nucleic acid

Explanation:

Copper (II) sulfate and sodium hydroxide are used in the Biuret test. The Biuret test is used to detect proteins. A negative test means protein is not present.

Answer:

protein