A student wants to try to convince her parents to stop serving peas for dinner. She lays out her argument that peas are high in fructose, which is a type of sugar. Which test could she use to provide scientific evidence to support her argument that peas are high in fructose?(1 point) Responses iodine test iodine test Benedict’s test Benedict’s test brown paper bag test brown paper bag test vinegar test
The test the student could use to provide scientific evidence to support her argument that peas are high in fructose is Benedict's test.
To provide scientific evidence to support her argument that peas are high in fructose, the student could use the Benedict's test.
The test that the student can use to provide scientific evidence to support her argument that peas are high in fructose is the Benedict's test. Here's how she can perform the test:
1. Obtain a sample of peas to be tested.
2. Crush or blend the peas to extract their liquid content.
3. Take a small portion of the pea extract and place it in a test tube.
4. Add Benedict's reagent, which is a solution containing copper sulfate and sodium carbonate, to the test tube.
5. Heat the test tube in a water bath or over a Bunsen burner for a few minutes.
6. Observe the color change in the solution after heating. If the solution changes from blue to green, yellow, or brick-red, it indicates the presence of reducing sugars like fructose.
The Benedict's test is specifically used to detect the presence of reducing sugars, such as fructose, by their ability to reduce the copper ions in the Benedict's reagent. If the test produces a positive result, it indicates that the peas contain fructose or other reducing sugars. The intensity of the color change can also be used to estimate the amount of sugar present.
It's important to note that the test only indicates the presence of reducing sugars and doesn't provide an exact measurement of the fructose content in peas. For a more precise measurement, a laboratory analysis, such as high-performance liquid chromatography (HPLC), would be required.