Bearden-Biology
11-13-20

We will be learning about macromolecules. A macromolecule is large molecules made up of smaller repeated units. There are four major macromolecules such as nucleic acids, carbohydrates, lipids and proteins.

Before we get into the major four macromolecules, there are some terms we can learn to understand the macromolecules better.
Monomers are small molecules that react with a similar molecule to form a larger molecule. Monomers are the building blocks for biological macromolecules such as DNA, RNA, proteins and carbohydrates. Remember "mono" means one or singular.

Polymers are multiples of simpler chemical units (monomers). Remember "poly" means multiple or combining something.

Now we are ready to begin to learn about..
THE BIG FOUR

When studying the four major macromolecules you will find out what they do for living things, what they generally look like and what their monomers and polymers are.

Let's begin with Carbohydrates. Carbohydrates are composed of CHO (carbon, hydrogen, oxygen) and can be found in fruits, vegetables, sugar and flour. Carbohydrates are a form of quick energy. Cellulose (a type of carbohydrate) is found in the cell wall of plants to allow them to grow.

Let's take a closer look at carbohydrates. They are divided into two groups: Simple sugars and Complex carbohydrates.
Carbohydrate's monomer is monosaccharides. This is also known as simple sugars. These monomers often end in -ose. Such as glucose and fructose.
Carbohydrate's polymer is polysaccharides. This is also known as complex carbohydrates. These include cellulose, starch, and glycogen.
An extra fact is something called a glycosidic linkage. It is a type of bond that joins a carbohydrate molecule to another group.



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Bearden-Biology
11-13-20

We will be learning about macromolecules. A macromolecule is large molecules made up of smaller repeated units. There are four major macromolecules such as nucleic acids, carbohydrates, lipids and proteins.

Before we get into the major four macromolecules, there are some terms we can learn to understand the macromolecules better.
Monomers are small molecules that react with a similar molecule to form a larger molecule. Monomers are the building blocks for biological macromolecules such as DNA, RNA, proteins and carbohydrates. Remember "mono" means one or singular.

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