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
• 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
Lipids
• Good lipids (fats)
▫ Saturated fats
• Not so good lipids
(fats)
▫ Unsaturated 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?