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Biology I: Chapter 3
Dr. Hsu
13
Biology
Undergraduate 1
10/12/2007

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Term
Glycosidic Linkage
Definition
Linkage in disaccharides that consist of a central oxygen atom covalently bonded to two carbons.
Term
Disaccharide
Definition
Two monosaccharide rings joined by a glycosidic linkage; maltose and sucrose.
Term
Maltose
Definition
Glucose + Glucose
Term
Sucrose
Definition
Glucose + Fructose
Term
Lactose
Definition
Glucose + Galactose
Term
Polysaccharide
Definition
macromolecule consisting of repeating untis of simple sugars; most abundant carbohydrate; include starches, glycogen, and cellulose
Term
Starch
Definition
Used for energy storage in plants; polymer of alpha glucose units; alpha 1-4 linkage
Term
Amyloplasts
Definition
Granules that store starch in plant cells.
Term

Glycogen

Definition
Animal starch; energy storage form of glucose in animals; alpha 1-4 linkage
Term

Cellulose

Definition

Most abundant carbohydrate; structural carbohydrate in plant cells; beta 1-4 linkages.

Term
Chitin
Definition
Not regular glucose; main component of cell walls in fungi and external skeletons.
Term
Glycoproteins
Definition
Carbohydrates that bind with proteins; allow cells to adhere to each other and provide protection.
Term
Glycolipids
Definition
Carbohydrates combined with lipids; compounds on the surfaces of animal cells that allow cells to recognize and interact with each other.
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