7. Fill in the blanks using the words: glucose | monosaccharide | energy | carbon | lipids | C6H12O6 | polysaccharide | carbohydrates All matter, must contain to be considered organic. , composed of starches and sugars are generally used in cells as a source of . If a carbohydrate has more than one sugar, it is considered a . The single subunit of a polysaccharide is a . An example of a monosaccharide is and its formula is .