Warm-up 1/31/12
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Transcript of Warm-up 1/31/12
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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.
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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
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Building Blocks of Cells
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Science
Biology Life Cells
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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
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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.
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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
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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
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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
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Proteins •Made of small carbon compounds
•Made of amino acids ▫Think DNA
•Used in every function of your body!
•10,000 different proteins
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Proteins •Transport substances
•Speed Reactions•Provide structural support
•Make hormones
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Nucleic Acids •Store and communicate genetic information
• made of carbon, nitrogren, oxygen, phosphorus, and hydrogen atoms
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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?