Organisation - Digestion

Which of these is NOT one of the 7 food groups?

• Carbohydrates

• Proteins

• Dairy

• Lipids

Answer explanation

Dairy foods contain proteins, fats (lipids) and minerals, but dairy is not a food group itself.

Which of these are types of carbohydrate?

• Starch

• Sugar

• Amino acids

• Fatty acids

Answer explanation

Starch is a complex carbohydrate, sugar is a simple carbohydrate.

"Meat, eggs, cheese, beans, nuts and seeds." These foods are all good sources of which nutrient?

• Simple carbohydrates

• Fats (lipids)

• Complex carbohydrates

• Protein

What is the major function of lipids (fats) in the body?

• Growth and repair

• Energy; make up part of cell membranes so essential for normal growth

Why does starch need to be digested (broken down)?

• It is too big to be absorbed

• It is too small to be absorbed

Proteins are broken down into _____ _____.

Starch is broken down into _______.

Lipids (fats) are broken down into fatty acids and ________.

Which chemical reagent is used to test for sugars?

• Benedict's

• Biuret

• Iodine

• Sudan III

What other conditions are needed for the Benedict's test?

Answer explanation

For the Benedict's test to work, the sample must be heated in a hot water bath.