Question

1. which of the following shows the results that you would get if you tested beef using the four tests in the gizmo? a b c d test tubes a test tubes b test tubes c test tubes d

Explanation:

1. Benedict's Test: Detects reducing sugars; beef has no significant sugars, so result is blue (negative).
2. Lugol's Test: Detects starch; beef has no starch, so result is amber/brown (negative).
3. Biuret Test: Detects proteins; beef is high in protein, so result is purple (positive).
4. Sudan Red Test: Detects lipids; beef contains fats, so result is red/pink (positive).

Matching these results to the options: Benedict (blue), Lugol (amber), Biuret (purple), Sudan Red (red) corresponds to test tubes C.

Answer:

test tubes C