Macronutrients

Question 1

What are the 6 major classses of nutrients in food?

Answer 1

Carbohydrates, Protein, Fat, Vitamins, Minerals, Water.

Question 2

What are organic and inorganic compounds?

Answer 2

Organic Compounds - protein, carbs, lipids and vitamins.

Inorganic Compounds - minerals and water.

Question 3

Energy - Kilojoules to Kilocalories.

Answer 3

4.2kJ = 1kCal

Question 4

kJ and kCal values of energy nutrients.

Answer 4

Carbs - 17kJ/g, 4kCal/g
Protein - 17kJ/g, 4kCal/g
Fat - 37kJ/g, 9kCal/g

Question 5

What’s a carbohydrate?

Answer 5

Glucose, provides nearly all of the energy the human brain uses daily.
Primary roles of carbs is to provide glucose for energy.
Stored as glycogen.

Question 6

What are monosaccharides?

Answer 6

They are single sugars.

Glucose, fructose and galactose.

Question 7

What are disaccharides?

Answer 7

They are pairs of monosaccharides.
Maltose (glucose + glucose)
Sucrose (glucose + fructose)
Lactose (glucose + galactose)

Question 8

What are comlpex carbohydrates?

Answer 8

Oligosaccharides or polysaccharides, multiple sugars linked in long or branched chains.
Glycogen and starch are examples.