Question

assessment questions

1. the test results below indicate the presence of which nutrient?

monosaccharide
polysaccharide
protein
lipid

1. which of the following shows the results that you would get if you tested beef using the four tests in the

Explanation:

• Benedict's test: Used to detect reducing sugars (monosaccharides and some disaccharides). A positive result (color change like brick - red) indicates monosaccharides. Here, the Benedict's test shows no significant color change (assuming the light blue is negative).
• Lugol's test: Tests for polysaccharides (starch). A positive result is a purple - black color. But we are looking for the nutrient indicated by the overall tests.
• Biuret test: Detects proteins. A positive result is a color change (usually violet), but in this case, the Biuret test shows no significant color change (assuming the light color is negative).
• Sudan Red test: Specifically used to detect lipids. A positive result is a red - orange color, which is shown in the given test tube.

Answer:

lipid