Lesson 2 - Chemistry of Life

PART 1 - VOCABULARY

A nucleic acid is

• an atom that carries information in cells.

• a molecule that carries information in cells.

• a molecule that includes sugars, starches, and fiber.

• an atom that includes sugars, starches, and fiber.

An atom is the _______ ________ of matter.

Fill in the following definition:

A molecule is ....

What is a phospholipid molecule?

• It's a fat molecule that contain phosphorus.

• It's a protein molecule that contain calcium.

• It's a carbohydrate molecule that contains phosphorus.

• It's a nucleic acid molecule that contains calcium.

Each different type of atom is called a/an

• elephant

• matter

• mate

• element

PART 2 - KNOWLEDGE

Explain what is an atom. Give all details you can remember.

Atoms become molecules when they

• ... are grouped together.

• ... are line up together.

• ...are grouped and held together by chemical bonds.

• ... are grouped and held together by chemical bands.

Please explain what a lipid is and what its functions are.

Please explain amino acids and proteins. Next, explain how they are related. Finally, explain their functions. If you need more space, use paper from your notebook.

Molecules that are a source of a body's energy are called

• amino acids

• nucleic acids

• carbohydrates

• lipids