This is the primary molecule in the plasma membrane
What is the phospholipid
100
These types of molecules have both hydrophobic and hydrophilic regions:
What are amphipathic molecules
100
This type of membrane protein does NOT penetrate the hydrophobic region of the membrane:
What are peripheral proteins
100
This prefix indicates that a carbohydrate is present:
What is glyco-
100
This general type of cell transport requires no energy:
What is passive transport
200
Following the freeze fracture technique, this class of biological macromolecule was found to be in particularly high concentration, along with phospholipids.
What are proteins
200
This term refers to the cell's tendency to only allow some things to pass and not others:
What is selective permeability
200
This portion of the plasma membrane is really what makes it so "selectively permeable":
What is the hydrophobic tail region
200
This type of passive transport requires that another molecule get involved, in order to move solutes from a high to low concentration:
What is facilitated diffusion
300
This is the name given to the model of the plasma membrane:
What is the fluid mosaic
300
This technique allowed researchers their first in-depth look at what comprises the membrane:
What is freeze fracture
300
This type of membrane protein traverses the entire membrane, from one side to the other:
What is a transmembrane (integral) protein
300
These types of molecules pass easily through the membrane:
What are non-polar molecules
300
Referred to as the diffusion of water:
What is osmosis
400
These specialized channels allow water to pass through the cell membrane:
What are aquaporins
400
In order for the plasma membrane to function properly, it needs to maintain the consistency, roughly, of this common kitchen product:
What is salad oil
400
Name the 6 functions of membrane proteins:
What are: transport, enzymatic activity, signal transduction (sending messages), cell-cell recognition, intercellular joining, and attachment to the cytoskeleton and ECM
400
The difference between a high amount of solutes on one side of the gradient, and a low amount on the other side, is referred to as:
What is a concentration gradient
400
This type of transport allows solutes to move from a region of high concentration to a region of low concentration without the expenditure of energy:
What is simple diffusion
500
This molecule keeps the membrane from becoming too viscous in cold temperatures:
What is cholesterol
500
Having large numbers of this molecule in a membrane will make it more fluid at lower temperatures:
What is unsaturated fatty acids in the tails
500
This convenient property of transmembrane proteins allows them to reside where they do:
What is that the parts of the proteins that reside in the tail region are themselves hydrophobic
500
In a solution, the thing dissolving is referred to as:
What is the solute(s)
500
This is the number one electrogenic pump in bacteria: