Food

Question 1

why do we need food?

Answer 1

for energy, nutrients for growth and repair of body cells, protection (against disease), insulation, vitamins and minerals ~lack of them can cause conditions (scurvy, rickets…).

Question 2

what are the 6 biomolecules?

Answer 2

Protein, Carbohydrates, Water, Minerals, Lipids, vitamins

Question 3

Carbohydrates contain what elements?

Answer 3

Carbon, Hydrogen, Oxygen

Question 4

The base unit of a carbohydrate?

Answer 4

Monosaccharide (simple sugar)

Question 5

monosaccharides are simple sugar units what are they…?

Answer 5

Glucose, Fructose, Galactose

Question 6

disaccharides are double sugar units ..name em?

Answer 6

Glucose + Glucose =Maltose
Fructose + Glucose =Sucrose
Galactose + Glucose =Lactose

Question 7

name the Polysaccharides (strings of single sugar units)

Answer 7

Starch-(storage in plants leaves)
Cellulose-(structure in plants)
Glycogen-(storage in animals)

Question 8

anabolic

Answer 8

the building of bigger molecules from smaller ones e.g photosynthesis

Question 9

catabolic

Answer 9

the breaking up of bigger molecules into smaller ones e.g respiration, digestion

Question 10

structural role of lipids in the body

Answer 10

cell membrane

Question 11

structural role of proteins in the body

Answer 11

cell membrane