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Living things & cell membranes
All living things have cell membranes
16
Biology
9th Grade
12/16/2007

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Term
The cell membrane consists of a ____________ & ___________
Definition
Lipid Bi layer and Proteins
Term
The lipid Bilayer functions as mainly a barrier to ____________ substances
Definition
Water-soluable
Term
Define Lipid Bilayer
Definition
The structural basis of every cell membrane
Term
The lipid bilayer consists of ___(number) layers of ___________ with ______ heads and _______tails
Definition
The lipid bilayer consists of two layers of phospholipids with hydrophilic head and hydrophobic tails
Term
Adhesive Proteins help _____ of the same type stick together in the proper _______
Definition
Cells, Tissues
Term
All cell membranes have _______ receptors, _________ and ______
Definition
Protein, Transporters, Enzymes
Term
The cell membrane incorporates ____ (number) types of proteins, name them.
Definition
Six. Adhesive Proteins, Communication Proteins, Receptor Proteins, Recognition Proteins, Passive Transporters, and Active Tranporters
Term
___________fatty acids have one or more double covalent bonds in their carbon backbone, and fully _________ fatty acids have none.
Definition
Unsaturated, Saturated
Term
By the ___________ model a cell membrane has a mixed composition of __________, glycolipids, _________, and proteins.
Definition
Fluid Mosaic Model, Phospholipids, sterols
Term
_________ ________ and other weak interactions help proteins associate with phospholipids
Definition
Hydrogen Bonds
Term
____________ carry out nearly all the membranes tasks
Definition
Proteins
Term
Many proteins are _______ for signals
Definition
receptors
Term
Many proteins transport specific ______ across the bilayer
Definition
solutes
Term
Some proteins transport solutes ___________ while other require _______ _________
Definition
Passively, energy input
Term
Other Proteins function as ___________ to mediate problems at the membrane
Definition
enzymes
Term
Among ___________ species the cell membrane has many diverse proteins
Definition
multi-celled
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