Biology 101: Chapter 5: Macromolecules

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Macromolecules
Answer 1
Polymers built from monomers.
Polymer
Answer 2
The building blocks that some macromolecules are made of.
Monomer
Answer 3
Small, repeating organic molecules that polymers contain.
Dehydration Reaction
"Synthesis"; when a water molecule is removed to form a bond between two monomers; used to bond monomers together to form polymers.
Hydrolysis
"Degradation"; when a water molecule is added to break a covalent bond; used to breakdown polymers into monomer subunits.
Enzymes
Proteins that speed up the Synthesis and Degradation reactions.
Carbohydrates
Include sugars and their polymers; monosaccharides (simple sugars), disaccharides, and polysaccharides; source of energy, energy storage, and structural component of cells.
Monosaccharide
A single sugar molecule (simple sugar); serve as a major fuel for cells as raw material for building molecules.
Glucose
The main fuel used for cellular work.
Fructose
Fruit sugar****
Lactose
Composed of galactose and glucose; found in milk.
Dissaccharide
Formed when a dehydration reaction joins two monosaccharieds (Ex. lactose).
Polysaccharide
The polymers of sugars that have storage and structural roles.
Glycogen
A storage polysaccharide in animals; polymer of glucose (animals store it mainly in liver and muscle tissue).
Starch
A storage polysaccharide in plants; polymer of glucose (plants store it as granules within chloroplasts and other plastids---Ex. amylose & amylopectin).