BiologyToday is Friday Sept 4, 2015

Drill: What foods do you eat that contain lipids?

Outcome: Compare the structure and function of all 4 macromolecules.

What foods do you eat that contain lipids?

REMEMBER!!!!Organic Molecules = Macromolecules• Organic= • Also Hydrogen, Oxygen, and Nitrogen

• Monomers:

• Polymers:

Smallest unit (puzzle pieces)

Many monomers put together (the completed puzzle)

made of carbon

Organic Molecules = Macromolecules1. Carbohydrates: main source of energy

2. Protein: build and repair body tissue (muscles)

3. Lipids: Long term energy storage.

4. Nucleic Acids: genetic information

Protein Function

• One of the four organic molecules (or macromolecules)

• Function is to control the rate of chemical reactions and regulate cell processes• Example: Enzymes• Lactase helps break down lactose (the sugar found in milk)

• Function is to transport substances in and out of cells.• Examples: Proteins channels

Proteins Structure

• Contains Carbon, Hydrogen, Oxygen, and Nitrogen• Amino acid and carboxyl groups do not change• “R” group changes

Protein Building Blocks

• The building block (monomer) is amino acids

• There are 20 different types of amino acids• Change based on the “R” Group

Nucleic Acid Function

• One of the four organic molecules (or macromolecules)

• Function is to carrier genetic information• Example: DNA

• Function is to create (synthesize) proteins• Example: RNA

Nucleic Acids Structure

Review

• You will be completing a organizer to study for your quiz

• You must be able to:• Name each macromolecule and their monomer (building block)• Explain the function• Explain the structure

Exit Ticket

A scientist removed the cell membranes from bacteria cells in a culture. She analyzed the cell membranes for specific molecules. Which of these was probably the most common type of molecule present in the bacteria cell membranes? A. lipid B. amino acid C. nucleic acid D. carbohydrate