Chapter 2: Nutrition. Food can divided into seven classes as follows: Carbohydrates proteins fats vitamins minerals fibre water. Carbohydrate PMR 03 FOOD TEST. Carbohydrate supplies us with energy to carry out daily activities such as walking, breathing, and working. .
Food can divided into seven classes as follows:
made up of carbon, hydrogen and oxygen.
made up of carbon, hydrogen, oxygen, and nitrogen
made up for carbon, hydrogen and oxygenbut the ratio is different from that of carbohydrate
a. supplying energy,
b. as and insulator of heat to reduce heat loss from the body,
c. protecting the internal organs such as the kidneys and the heart,
Sources and functions of minerals as well as the effects of mineral deficiencies
a. physical digestion /mechanical digestion
- involves the action of various enzymes in breaking down complex food molecules. These complex molecules are insoluble but the end products of chemicals digestion are simpler molecules which are soluble.
The liver also plays a vital role in excretion. It removes toxic chemicals from the blood through a series of chemical reactions.
Fatty acids, glycerol and fat-soluble vitamins (vitamin A, D, E and K) are absorbed into the lacteal.
in the human alimentary canal
diffuse in small intestine
1. Baca Surah Al-`Ashr
2. Tasbih Kifarah.