Warm-up 1/31/12•Teach the Teacher: What is the best kind
of candy to get at the gas station?• •Review: What are the three parts of an
experiment. • •Learning Target: Defend Whether
something is alive or not. • Identify the 4 types of macromolecules.
Flash Card •On the Front
Write:•Characteristics
of Life
•On the Back write: •Made of cell (s)•Organization•Grows •Reproduces•Responds to stimuli•Requires energy•Homeostasis •Has adaptations
Building Blocks of Cells
Science
Biology Life Cells
Macromolecules •Macro=large •Molecules=two or more atoms bonded
together, like H20•Tons of repeating molecules bonded
together to make…macromolecules •Think of them like the wood for building
the framing of a house
4 types of Macromolecules
•Carbohydrates•Lipids •Proteins •Nucleic acids
Just like there are different materials used to make a house…different materials to make a cell.
Carbohydrates •Store energy
▫Sucrose, lactose, glucose
•Provide structural support▫Cellulose makes
cell wall of plants ▫Chitin is hard
outer layer in the hard outer shell of shrimp, lobsters, and some insects
In foods=sugar and starches
Lipids •Made up of carbon
and hydrogen •Make up fats, oils,
waxes▫Coated on leaves
(wax) ▫Beeswax for
honeycomb•Store Energy •Provide Barriers
for cells▫Phospholipids
•Include steroids and cholesterol
Lipids •Good lipids (fats)
▫UnSaturated fats•Not so good lipids (fats)saturated fats
•Saturated refers to the number of hydrogens that can fit on the macromolecule
Proteins •Made of small carbon compounds
•Made of amino acids ▫Think DNA
•Used in every function of your body!
•10,000 different proteins
Proteins •Transport substances
•Speed Reactions•Provide structural support
•Make hormones
Nucleic Acids •Store and communicate genetic information
• made of carbon, nitrogren, oxygen, phosphorus, and hydrogen atoms
Notes To Notes Card •Write your name and period on the note
card, and use your notes to answer the following questions:
1. What are the four main macromolecules?
2. Which macromolecules provide structural support?
3. What is a macromolecule?4. Which fat is the good kind of fat? 5. What type of macromolecule is used
for barriers, like in honeycomb?