CARBOHYDRATES AND ENERGY
Carbohydrates are widely distributed in plants in which they are formed from Co2 of the atmosphere by photosynthesis. Carbohydrates are the preferred source of energy for most of the body functions. As long as carbohydrates are available, the human brain depends exclusively on it as an energy source. They are the cheapest and most important source of energy for the vast majority of people in the tropics.
Our body needs energy to grow and repair themselves, keep warm and do physical activity. Energy comes from food and drink, in particular from carbohydrate, protein and fat (collectively known as macronutrients). The amount of each macronutrient in the food will determine its energy content.
· understand the importance of carbohydrates as an economical source of energy
· know the significance of complex carbohydrates
· understand the importance of basal metabolism and basal metabolic rate
· create an awareness about the benefits of physical activity as part of a healthy lifestyle.