Part 1 of Essay
In a human being, nutrients are necessary for survival. But how are these nutrients obtained? This report will go into depth on how the food we eat gets into our cells, and how the waste products that we produce get out of the body. Also, the unicellular organism Paramecium will be compared with a human being, in terms ....

Part 2 of Essay
.... into smaller units. Occasionally, the simplest form of sugar, a monosaccharide such as glucose, is present in food. These monosaccharides do not require digestion. Proteins are polymers composed of one or more amino acids. When they are digested, they produce free amino acids and ammonia. Vitamins are a vital part of our food that are absorbed through the small intestine. There are two different types of vitamins, water-soluble (All the B vitamins, and vitamin C) and fat-soluble (vitamins A, D and K). ....