Why are lipids considered macromolecules? Biology Molecular Biology Basics Lipids. Krishan T. Jan 26, Explanation: Lipid is not a single molecule. Explain saturated fatty acids. Explain how lipids lead to ATP production?
How are fats absorbed and transported by the body? What are some examples of fatty acids? What are some examples of lipids? What is the role of glycolipids in cells? These terms actually refer to the number of hydrogens and double bonds in the hydrocarbon tail of such molecules. In saturated fats, the carbons are bonded to the maximum amount of hydrogens possible.
In unsaturated fats, some of the carbons pairs share double bonds instead of being bonded to hydrogen. Fatty acids are a building block for other, more complex lipids—for example, triglycerides are a subgroup of lipids composed of a glycerol backbone connected to up to three fatty acids. Biological macromolecules all contain carbon in ring or chain form, which means they are classified as organic molecules. They usually also contain hydrogen and oxygen, as well as nitrogen and additional minor elements.
Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules. All the molecules both inside and outside of cells are situated in a water-based i. Interactive: Monomers and Polymers : Carbohydrates, proteins, and nucleic acids are built from small molecular units that are connected to each other by strong covalent bonds.
The small molecular units are called monomers mono means one, or single , and they are linked together into long chains called polymers poly means many, or multiple.
Each different type of macromolecule, except lipids, is built from a different set of monomers that resemble each other in composition and size. Lipids are not polymers, because they are not built from monomers units with similar composition.
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