Nutrition

• Science
• Lower Secondary (Key Stage 3)

Food test

How to test for different food substances.

Describe how to test for protein with Biuret solution.

Describe how to test for protein with Biuret solution.

Which test is used to detect protein?

1. Biuret test
2. Lugol's test
3. Emulsion test
4. Benedict's test

What does a positive test for protein look like?

1. Green
2. Purple
3. Blue
4. Red

What is the test for glucose?

1. Sudan III test
2. Iodine test
3. Biuret test
4. Benedict's test

Describe the test for lipids.

What is the test for lipids?

1. Barfoed's test
2. Biuret test
3. Ethanol shaken
4. Benedict's test

Describe how to test for starch

What does a positive starch test indicate?

1. Absence of glucose
2. Presence of starch
3. Absence of starch
4. Presence of sugar

Which reagent is commonly used for the starch test?

1. Benedict's solution
2. Potassium permanganate
3. Hydrogen peroxide
4. Iodine solution

What color change indicates the presence of starch in the starch test?

1. Red
2. Yellow
3. Green
4. Blue-black

What is the purpose of a glucose test?

1. To assess cholesterol levels
2. To measure the level of sugar in blood
3. To monitor oxygen levels
4. To check blood pressure

What is the purpose of Benedict's solution?

1. Test for starch presence
2. Test for protein concentration
3. Test for lipid content
4. Test for reducing sugars in a solution

Which color indicates a positive result when using Benedict's solution?

1. Blue
2. Green
3. Yellow
4. Reddish-orange