EduNinjaMilk also contains vitamins and mineral salts.
Explain why vitamin D is important for the nutrition of children.
Explain why iron is important in the diet.
Rubella and kwashiorkor are two diseases that affect children.
Rubella is a transmissible disease and kwashiorkor is a non-transmissible disease.
Outline the causes of kwashiorkor.
Fat is a necessary component of the human diet.
State three ways in which the human body uses fat.
1
2
3
Milk is sometimes referred to as a 'complete food' because it contains all the nutrients that a young mammal requires.
Table 1.1 shows three nutrients that are contained in milk.
Complete the table by stating one role of each nutrient in the body of a young mammal.
Table 1.1
The teeth of red pandas do not decay as much as human teeth.
Suggest the component of a human diet that causes teeth to decay as a result of bacterial respiration.
Two functions of the alimentary canal are mechanical digestion and chemical digestion.
Substances that are absorbed from the alimentary canal may enter cells and become part of the cells.
Fat is produced from fatty acids and glycerol by cells in the fatty tissue beneath the skin. State one function of this layer of fat.
The following symptoms can be caused by a dietary deficiency:
- bone pain
- dental problems
- fragile bones
- skeletal deformities
A lack of which nutrient is most likely to cause these symptoms?
iron
protein
vitamin C
vitamin D
The table shows the percentage of the daily recommended intake of nutrients in a serving of four foods.
Which food would be the best choice to prevent scurvy?
calcium
iron
vitamin
C
vitamin
D
71
1
0
6
24
11
2
73
3
3
72
0
1
72
1
0
Which disease is caused by a deficiency of iron in the diet?
anaemia
kwashiorkor
marasmus
rickets
Plants produce glucose in leaves and convert some of it to sucrose.
Amino acids are also transported through plants.
State the name of the mineral ion that is used to make amino acids.
What is the main cause of kwashiorkor?
insufficient
energy
insufficient
protein
x
x
x
x