1 Established more than 200 years ago 'for the good of mankind', the University of Strathclyde is renowned for excellent teaching, research and strong links with industry, government and business.
Carbohydrates. The carbohydrates are the compounds which provide energy to living cells. They are compounds of carbon, hydrogen and oxygen with a ratio of two hydrogens for every oxygen atom. The carbohydrates we use as foods have their origin in the photosynthesis of plants.They take the form of sugars, starches, and cellulose.oth starches and cellulose are carbohydrates which are classified as polysaccharides since they are composed of chains of glucose molecules. While they are similar, starches can be used as energy sources by the human body while cellulose cannot.
We need this amount of carbohydrate because: 1  Carbohydrates are the body s main source of fuel. 2  Carbohydrates are easily used by the body for energy. 3  All of the tissues and cells in our body can use glucose for energy. 4  Carbohydrates are needed for the central nervous system, the kidneys, the brain, the muscles (including the heart) to function 5  ... Chen we eat these types of foods, our body breaks down the protein that they contain into amino acids (the building blocks of proteins). Some amino acids are essential which means that we need to get them from our diet, and others are nonessential which means that our body can make them.