Chapter 4 - Nutrients 2

How can we identify proteins?

• Ethanol emulsion test

• Biuret test

• Benedict's test

• Iodine test

Which of the following statement about proteins is true?

• proteins are made up of amino acids

• proteins are made up of peptide acids

• proteins are made up of fatty acids

• proteins are made up of glycerol

Which of these are functions of fats?

• Used as storage molecules for energy

• insulating material

• forms protoplasm for new cells

• major component of the cell membrane

Which of the following correctly describes a positive result from the ethanol test for fats?

• A clear solution is obtained

• A purple solution is obtained

• A white emulsion is obtained

• A brown precipitate is obtained

Which nutrient types are important for survival?

• Fats

• Protein

• Carbohydrates

• Water

• Micronutrients (e.g. vitamins, iron)