Food Testing

Question 1

Why do we need to eat protein?

Answer 1

proteins are needed for growth and repair

Question 2

Why do we need carbohydrates?

Answer 2

carbohydrates are a source of energy

Question 3

Why do we need to eat fats?

Answer 3

Fats are also a high-energy source The also contain essential amino acids which are fat soluble

Question 4

What is the chemical test for a reducing sugar?

Answer 4

Benedicts solution

Question 5

What would be seen when benedicts solution is added to a reducing sugar?

Answer 5

Food containing a simple reducing sugar, the solution will turn brick red/orange with benedict solution.

Question 6

What is the chemical test for starch?

Answer 6

Iodine Solution

Question 7

What would be seen when starch is added to Iodine?

Answer 7

if the food contains starch, it will turn blue/ black with iodine.

Question 8

What is the chemical test? and what is the colour change seen for a protein?

Answer 8

if the food sample contains proteins, biurets solution will turn violet/ purple.