What are the different roles of macromolecules in biology?
Oh wow, that is not a short answer question. Almost everything that happens in biology is controlled to some extent by macromolecules. I’m not sure what level of answer you want but here are some things you can look up. OK some pointers look up proteins, lipids (also known as fats) and carbohydrates. DNA (and RNA) are other examples of macromolecules. Proteins, lipids and carbohydrates are all used as fuel sources (and storage) for the body. They are all also involved in sending messages around the body. DNA is mainly used to store information. Proteins can be used as catalysts (known as enzymes) and are involved in most of the reactions that occur in the cells. Lipids (or fats) are a long term energy source, they are also used in making the phospholipid bilayer (the plasma membrane) which surrounds cells, they are often used as barriers. They are also used in some hormones. Carbohydrates primarily serve as a short term energy store and a source of fuel. However they are also used to m
