DO NOW On the top of you note packet, write down 3 things that you might see on the nutrition label on the back of a can of food.

AIM: The Chemistry of Life- Organic and Inorganic

Why is Chemistry important in Biology? (review) 1) All living things are made up of atoms and molecules. Living things are constantly under going chemical reactions. All of which is what chemistry is all about.

Organic and inorganic molecules Molecules can be grouped into two categories: - Organic - Inorganic

Organic molecules are molecules that contain at least 1 Carbon and at least 1 Hydrogen.

* Inorganic Molecules are all the other molecules that do not fit the definition of organic molecules. * Remember that inorganic molecules can have carbon and hydrogen but they cannot be in the same molecule. C O

3) Are organic molecules more important than inorganic molecules? 3) Inorganic molecules are important because they can be broken apart and recombined to make organic molecules. Also inorganic molecules (such as water) are important for certain body processes.

6 Carbon dioxide molecules Photosynthesis 6 Carbon dioxide molecules 6 water molecules 1 Glucose Molecule 6 Oxygen Molecules

What are some important organic molecule? There are four major groups of organic molecules that are important to all living things: Carbohydrates Lipids Proteins Nucleic Acids

Carbohydrates – plays an important role as a source of energy. They are sugar and starch. They are ring shaped. Glucose (sugar) is a small molecule. Starches are large molecules. The subunit (building blocks) of carbohydrates is glucose.

- Glucose Starch -

Lipids (fats) – plays an important role in membrane production. They are very large molecules. They are found in oils, fats, and wax. Their subunits are fatty acids.

Protein – the building blocks of all living things. They are very large molecules. Their shape determines their function (job). Subunits of proteins are amino acids. Some types of proteins are: * Enzymes * Hormones They are found in meats and eggs.

Nucleic Acid – plays a major role in genetics DNA RNA The subunit of nucleic acid are nucleic bases.

Let’s Review What is the difference between an organic and inorganic molecule? What is the difference between an atom and a molecule? What are the 4 types of organic molecules? Organic molecules have both a carbon and a hydrogen Molecules are made from 2 or more atoms Carbohydrates, Lipids, Proteins and Nucleic Acids

Let’s Review What is the subunit of carbohydrates? What is the subunit of lipids? What is the subunit of proteins? What is the subunit of nucleic acids? Glucose Fatty Acids Amino Acids Nucleic Bases

Let’s Review Which organic molecule is ringed shaped? Which organic molecule is used in genetics? Which organic molecule is found in wax? Enzymes are what type of organic molecule? Carbohydrates Nucleic Acids Lipids Proteins