Answer: A macromolecule’s structure is intimately connected with its function. Consider, for example, a nucleic acid. This type of polymer is made up of a chain of nucleotides that are strung together in a precise sequence. The nucleotide sequence provides a code that stores genetic information and that the cell can copy and pass on to the next generation of cells.
In a similar way, the precise sequence of monomers (amino acids) in a protein also acts as a kind of code. In this case, the amino acid sequence determines the protein’s 3-dimensional shape and chemical reactivity, which, in turn, endow a protein with its specific function. Some proteins, for example, have shapes that allow them to grab molecules and speed chemical reactions. Others, such as strong cables of collagen, provide structural support to cells and tissues.
Carbohydrates include the relatively small glucose molecule and the enormous glycogen molecule, which may consist of hundreds of thousands of glucose monomers. Carbohydrates are energy-rich. Many, such as glycogen, provide energy-storage functions. Other carbohydrates, such as cellulose—a component of plant cell walls—serve primarily structural roles in a cell.
Lipids are the only macromolecules that are not polymers. Lipids are diverse in structure and function, but all have in common that they are hydrophobic—that is, they are nonpolar and do not dissolve in water.
Step-by-step explanation: