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Chapter III A&P
The cellular level of Organization
10
Anatomy
Post-Graduate
12/09/2010

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Term
The _________ __________ forms the cell's flexible outer surface, separating the cell's internal environment.
Definition
Plasma Membrane
Term
What is a selective barrier that regulates the flow of materials into and out of a cell.
Definition
Plasma Membrane
Term
What consists of all the cellular contents between the plasma membrane and the nucleus?
Definition
Cytoplasm.
Term
The cell’s outer membrane made up of a two layers of phospholipids with embedded proteins. It separates the contents of the cell from its outside environment, and it regulates what enters and exits the cell.
Definition
Plasma Membrane
Term
What is a thin membrane made of two layers of lipid molecules?
Definition
Lipid Bilayer
Term
What are a class of lipids and are a major component of all cell membranes as they can form lipid bilayers? 75%
Definition
Phospholipids
Term
What is a waxy steroid metabolite found in the cell membranes and transported in the blood plasma of all animals?
Definition
Cholesterol
Term
What are lipids with a carbohydrate attached. Their role is to provide energy and also serve as markers for cellular recognition?
Definition
glycolipids
Term
(1) Pertains to a molecule containing both polar (water-soluble) and nonpolar (not water-soluble) portions in its structure.

(2) Of, or relating to, a molecule having hydrophobic and hydrophilic regions.
Definition
amphipathic
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