... earth are carbon based life-forms because the element can bond with itself repeatedly to form an infinite variety of molecules. Carbohydrates are organic molecules, including all sugars and starch, and contain three elements: carbon, hydrogen and oxygen. Carbohydrates are the first molecules produced in photosynthesis, as lipids, proteins and nucleic acids are synthesised from them. There are three ... made from two monosacharides, and like monosacharides they are classed as sugars. Polysaccharides are multiple sugars, or polymers of many monosacharides. Monosacharides are the chemical ...

• Word Count: 1230
• Approx Pages: 5
• Grade Level: Undergraduate