Friday, September 23, 2011

Macromolecules in cells

Macromolecules is a class of large molecules that are very important biologically. A monomer is several small molecular structures that may be chemically bonded together to form long multipart polymer molecules. A polymer is a large molecule made up of similar or identical subunits called monomers. The four main types of macromolecules are proteins, lipids, carbohydrates, and nucleic acids. Macromolecules are generally built by combining many single units or monomers into larger units called polymers. Monomers are joined together by condensation reactions. Polymers are broken down by hydrolysis. The specific name for the bond between specific sugar monomers is nucleotides. Polymers join monomers together. To build a polysaccharide monomers have to be linked together by glycosidic linkages. Sugar is stored as glycogen in the human body because it gives you energy. Plant foods are essential to animal life because it is digestible and has vitamins, minerals, and fiber.Starch is digested by animals by turning it into fiber. Fiber is important to your body because it cleans out all the nasty stuff bad things in your body. You pass gas because of the food you eat. Some disadvantages to a low carb diet is diet compliance, don't get enough nutrients, and have a risk of getting cancer.Sugar plays a big role in cavity formation in your teeth because it can help your enamel which makes your teeth strong.

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