113 cards
The cell ( plasma ) membrane is often described as ____.
The cell membrane permits ____ compounds to cross easily
The theory that underlies the structure and function of the cell membrane is referred to as the ____.
The phospholipid bilayer also includes proteins and distinct signaling areas within ____.
Carbohydrates associated with membrane-bound proteins create a ____.
____ create a glycoprotein coat .
The main function of the cell membrane is ____.
Phospholipids move rapidly in the plane of the membrane through ____.
____ are collections of similar lipids with or without associated proteins that serve as attachment points for other biomolecules.
Both ____ also travel within the plane of the membrane, but more slowly than phospholipids.
Specialized enzymes called ____ assist in the transition or “flip” between layers of lipids.
Component of Membranes From Most To Least ____.
Fatty acids are ____ group.
____ are carboxylic acids that contain a hydrocarbon chain and terminal carboxyl group.
Triacylglycerols are also referred to as ____ .
____ are also referred to as triglycerides .
____ are storage lipids involved in human metabolic processes.
Triacylglycerols are ____ involved in human metabolic processes.
Triglycerides contain ____ molecule.
Triglycerides contain three fatty acid chains ____ to a glycerol molecule.
Unsaturated fatty acids are regarded as “____” fats .
____ fatty acids are regarded as “healthier” fats .
Unsaturated fatty acids tend to have ____ form at room temperature.
Most unsaturated fatty acids come from ____s from the intestine inside chylomicrons.
Most ____ fatty acids come from essential fatty acids in the diet that are transported as triacylglycerols from the intestine inside chylom…
Most unsaturated fatty acids come from essential fatty acids in the diet that are transported as triacylglycerols from the in____.
Two important essential fatty acids for humans are ____.
Saturated fatty acids are the main components of animal fats and tend to exist as ____ at room temperature.
____ fatty acids are the main components of animal fats and tend to exist as solids at room temperature.
Saturated fatty acids are the main components of an____d tend to exist as solids at room temperature.
When incorporated into phospholipid membranes, ____ fatty acids decrease the overall membrane fluidity
Trans fats, which result from ____, have been banned from certain stores and cities because of their health risks.
____, which result from the partial hydrogenation of some unsaturated fatty acids, have been banned from certain stores and cities because…
Glycerophospholipids are defined by the presence of a ____ in the triglyceride structure.
____ are defined by the presence of a phosphate group substituting one of the three carbons of glycerol in the triglyceride structure.
Glycerophospholipids are defined by the presence of a phosphate group substituting one of the three carbons of glycerol in the ____ structu…
Glycerophospholipids are commonly known as ____.
____ are commonly known as phospholipids.
Phospholipids spontaneously assemble into micelles or liposomes due to ____.
____ spontaneously assemble into micelles or liposomes due to hydrophobic interactions.
Phospholipids spontaneously assemble into ____ due to hydrophobic interactions.
Micelles are ____ vesicles.
Liposomes are ____ vesicles.
Glycerophospholipids can produce a ____ surface layer on lipoproteins.
____ can produce a hydrophilic surface layer on lipoproteins.
The phosphate group in phospholipids provide an attachment point for ____ groups.
The ____ in phospholipids provide an attachment point for water-soluble groups.
____ is also known as lecithin .
Phosphatidylcholine is also known as ____ .
____ is the most abundant glycerophospholipid.
____ is the second most abundant glycerophospholipid.
How are sphingolipids similar to glycerols in structure? Answer: ____.
Classes of sphingolipids and their hydrophilic groups include ____.
Cholesterol not only regulates ____.
____ not only regulates membrane fluidity, but it is also necessary in the synthesis of all steroids.
At ____ temperatures, cholesterol prevents the formation of crystal structures in the membrane, increasing fluidity.
At low temperatures, cholesterol ____ fluidity.
At ____ temperatures, cholesterol limits movement of phospholipids within the bilayer, decreasing fluidity.
At high temperatures, cholesterol ____ fluidity.
By mass, cholesterol composes about ____.