Food Tests

Question 1

How do we make a food solution?

Answer 1

-crushing the food
-then mixing well

Question 2

To test for carbohydrate starch you use what solution?

Answer 2

Iodine solution

Question 3

What solution is needed to test for carbohydrate sugars?

Answer 3

Benedict’s solution

Question 4

How do we test for protein?

Answer 4

Biuret solution

Question 5

What are the two ways we can test for lipids?

Answer 5

-use ethanol (alcohol)
-use a piece of filter paper

Question 6

What colour is iodine solution?

Answer 6

Orange-yellow liquid

Question 7

What colour is Benedict’s solution?

Answer 7

A blue liquid

Question 8

What colour is biuret solution?

Answer 8

Pale blue liquid

Question 9

What colour is ethanol? (Also known as alcohol)

Answer 9

A colourless clear liquid

Question 10

What colour will the solution go if starch is present? (Carbohydrate starch)

Answer 10

A blue-black colour

Question 11

What colour does the solution go when sugar is present? (Carbohydrate)

Answer 11

Orange-red colour

Question 12

What colour does the solution go if protein is present?

Answer 12

Purple colour

Question 13

What colour does the solution go if lipids are present? (Ethanol)

Answer 13

Cloudy solution

Question 14

What colour does the filter paper go if lipids are present? (Filter paper)

Answer 14

Translucent (see through)