Download Biology Today is Monday Aug 31, 2015

Biology
Today 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= made of carbon
• Also Hydrogen, Oxygen, and Nitrogen
• Monomers: Smallest unit (puzzle pieces)
• Polymers: Many monomers put together (the completed puzzle)
Organic Molecules = Macromolecules
1. 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