Food Test Grade 9

What are the products when oil is digested?

• amino acids and glycerol

• fats and amino acids

• fatty acids and glycerol

Which result with the biuret test would show protein is present?

• blue

• green

• orange

• purple

Which food is high in iron?

• citrus fruit

• milk

• oily fish

• red meat

A biuret test on a sample of food is positive. Which nutrient does this result show to be present?

• fat

• glucose

• protein

• vitamin C

Four foods were tested for

fat (using ethanol),

protein (using the biuret test),

reducing sugar (using Benedict’s solution),

starch (using iodine solution).

Which food contains protein and starch?

• A

• B

• C

• D

Tests were carried out on a colourless liquid, with the following results.

What did the colourless liquid contain?

• protein only

• protein and reducing sugar only

• protein and starch only

• protein, reducing sugar and starch

Which chemical element is found in proteins, but not in carbohydrates or fats?

• carbon

• hydrogen

• oxygen

• nitrogen

I am used to test for the presence of complex carbohydrates (starch)

• Benedict's Test

• Biuret Test

• Iodine Test

• Ethanol Emulsion Test

I am used to test for the presence of simple carbohydrates (sugars)

• Benedict's Test

• Biuret Test

• Iodine Test

• Ethanol Emulsion Test

I am used to test for the presence of protein

• Benedict's Test

• Biuret Test

• Iodine Test

• Ethanol Emulsion Test