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Macromolecules
Review flashcards over the macromolecule unit.
40
Biology
9th Grade
09/20/2011

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Term
Macromolecules
Definition
Large/giant molecules
Term
What does life do?
Definition
a. growth
b. reproduction
c. movement
d. interaction with the environment
Term
What bonds can carbon form?
Definition
4 covalent bonds
Term
Carbon can bond with what elements?
Definition
Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur
Term
Single Bond
Definition
Signified by solid line between symbols; shares 2 electrons; longest, weakest, bond
Term
Double Bond
Definition
Signified by two solid lines between symbols; shares 4 electrons
Term
Triple Bond
Definition
Signified by 3 solid lines between symbols; shares 6 electrons; shortest, strongest bond
Term
Macromolecules consist of ?
Definition
Monomers
Term
Polymer
Definition
Large molecules of repeating units (monomers) bonded together by covalent bonds
Term
Polymerization
Definition
The process of bonding polymers together
Term
Dehydration
Definition
The synthesizing of covalent bonds between monomers that involves losing a water molecule (aka condensation reaction)
Term
Hydrolysis
Definition
Breaking the covalent bond within the polymer to break off a monomer involves breaking a water molecule and inserting its pieces
Term
4 Types of Macromolecules
Definition
1. Carbohydrates
2. Lipids
3. Nucleic Acids
4. Proteins
Term
Molecular Composition of Carbohydrates
Definition
C, H, O
Term
Monomer Unit of Carbohydrates
Definition
monosaccharides
Term
Function of Carbohydrates
Definition
1. Energy
2. Raw Materials
3. Energy Storage
4. Structural Compounds
Term
Disaccharides
Definition
two monosaccharides bonded by a glycosidic linkage
Term
Starches
Definition
Complex carbohydrates that store extra sugar
Term
Animal Starch
Definition
Glycogen, structural chitin
Term
Starch of Plants
Definition
Plant Starch, structural cellulose
Term
Molecular Composition of Lipids
Definition
C, H, O
Term
Molecular Composition of Lipids
Definition
C, H, O
Term
Monomer Units of Lipids
Definition
glycerol, fatty acids, cholesterol, H-C chains
Term
Lipids are ?
Definition
Hydrophobic
Term
Unsaturated Fatty Acids
Definition
Found in lipids liquid at room temperature, C=C bonds, example: olive oil
Term
Saturated Fatty Acids
Definition
Found in lipids solid at room temperature, no C=C bonds, example: butter
Term
Molecular Composition of Proteins
Definition
C, H, O, N
Term
Function of Proteins
Definition
1. Enzymes (catalyze reactions)
2. Transport
3. Signals
4. Defense
5. Structure
6. Receptors
7. Storage
Term
Monomer Unit of Proteins
Definition
Amino acids
Term
How many types of amino acids?
Definition
20
Term
What changes the type of amino acid?
Definition
The R group
Term
Primary Amino Acid
Definition
Order of amino acids, makes a polypeptide chain
Term
Secondary Amino Acids
Definition
a-helix or b-pleated sheet
Term
Tertiary Amino Acids
Definition
3D structure, interactions along different parts of the amino chain
Term
Quaternary Amino Acids
Definition
interactions between 2 amino acid chains
Term
Molecular Composition of Nucleic Acids
Definition
C, H, O, N, P
Term
Function of Nucleic Acids
Definition
1. Store genetic information
2. Transmit genetic information
Term
Two Types of Nucleic Acids
Definition
1. DNA
2. RNA
Term
Monomer Unit of Nucleic Acids
Definition
Nucleotides
Term
3 Parts of a Nucletide
Definition
1. 5-carbon sugar
2. Phosphate group
3. Nitrogenous base (A, G, C, T, or U)
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