Food tests

Question 1

What do you use to test for starch

Answer 1

Iodine solution

Question 2

What do you use to test for glucose

Answer 2

Benedict’s test

Question 3

What do you use to test for proteins

Answer 3

Biuret test

Question 4

What colour will the food sample turn if it contains glucose

Answer 4

Blue to yellow or green in a low concentration and blue to brick red in a high concentration

Question 5

What colour will the food sample turn if it contains starch

Answer 5

Browny-orange to black or blue black

Question 6

What colour will the food sample turn if it contains proteins

Answer 6

Blue to pink or purple

Question 7

What foods contain protein

Answer 7

Meat and cheese

Question 8

What foods contain glucose

Answer 8

Biscuits, cereal and bread

Question 9

What foods contain starcg

Answer 9

Pasta, rice and potatoes

Question 10

How do you test for starch

Answer 10

Add 5cm2 of food sample to a test tube, add iodine solution and gently shake

Question 11

How do you test for glucose

Answer 11

Add 5cm3 of food sample to a test tube, prepare a water bath to 75oC, add 10 drops of Benedict’s solution, place test tube in water bath and leave for facing away for 5 mins.e

Question 12

How do you test for proteins

Answer 12

Add 2cm3 of food sample to a test tube. Add 2cm3 of buiret solution and mix gentlu