Term
What do the polar phospholids do? |
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Definition
The polar head attracts water molecules which are also polar forming hydrogen bonds. |
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Term
What does the nonpolar phospholids do? |
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Definition
The nonpolar zone of the lipid bilayer seperates the cell from its surrondings. |
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Term
The pushing and pulling of phospholids by water results in the formation of the _________ _________ |
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Definition
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Term
these are embedded within the lipid bilayer which allow the cell to communicate with the outside world and are called ____ _______ ________ |
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Definition
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Term
How are the surface proteins anchored into the membrane? |
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Definition
The cell surface proteins are anchored by the membrane's nonpolar middle region |
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Term
What are the 3 types of cell surface proteins that each play a role on the life of a cell? |
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Definition
channels,receptor proteins and cell surface markers. |
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Term
These have a series of nonpolar amino acid sequences which move back & forth creating a channel through the membrane |
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Definition
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Term
The cells of our bodies differ from one to the other due to types of ______ they have. |
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Definition
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Term
These are specialized to transmit information from the outside worls to the cell's interior |
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Definition
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Term
A ________ of the right shape must fit into the _______ causing a change at the opposite end of the _______, thus triggering responses within the cell. |
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Definition
1. Molecule 2. Receptor 3. Receptor |
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