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Which of the following predicted property of lipid bilayers would result if the phospholipids had only one hydrocarbon chain instead of two?
Wiki User
∙ 11y ago
they will form micelle in oeder to minimise the surface area and will still shield the hydrophobic tail from the aq. environment
Wiki User
∙ 11y ago
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Which statement most accurately describes the relationship between the permeability and fluidity properties of phospholipid bilayers and their structure?
Bilayers are more permeable as well as more fluid when they consist of shorter, unsaturated hydrocarbon tails.
What forms lipid bilayers important in mambrane structure and function?
Phospholipids are the essential 'bulk' part of the lipid bilayer that make up cell membranes. Phospholipids have a hydrophylic (water-loving) phosphate head and hydrophobic (water-hating) aliphatic hydrocarbon tails. When in solution (such as water), such molecules naturally pack together to form a complete structure called a mycelle. In Biology, this of course allows for the formation of membranes- essential for life to exist as it does. In general science, mycelles exist everywhere. For example, when you use washing up liquid, the resulting bubbles are mycelles- as are droplets of oil in water etc.
Cell surface proteins float on top of phospholipid bilayers?
This is false, they do not.
What makes phospholipid molecules uniquely suited to their role in membrane structure?
Phosopholipids have both a hydrophilic (water loving) and hydrophobic (water hating) region. This enables them to effectively make a barrier between the fluid inside and outside of the cell. The heads of phospholipids are hydrophilic - and so form the surfaces of the membrane, with their hydrophobic (lipid) tails facing inwards.
What does the name lipid bilayer mean?
okay ill be serous on this one. lipids are hydrophobic which means that they are afraid of water. in order for a lipid to bond with a membrane it has to double up with other lipids forming a bilayer because the tails are hydrophobic. so heads are out and tails are in.
Which aspect of phospholipids is most important to the formation of bilayers?
They are amphipathic.
What has the author Gregor Cevc written?
Gregor Cevc has written: 'Phospholipids Handbook' 'Phospholipid bilayers' -- subject(s): Bilayer lipid membranes, Biological Models, Phospholipids
Which statement most accurately describes the relationship between the permeability and fluidity properties of phospholipid bilayers and their structure?
Bilayers are more permeable as well as more fluid when they consist of shorter, unsaturated hydrocarbon tails.
Are Phospholipids naturally one layer?
Generally no. They form micelles when isolated in small numbers, or form bilayers when encapsulating aqueous/hydrophobic mediums.
What increases the strength of the hydrophobic interactions in lipid bilayers and thus makes them less permeable to polar molecules?
increasing the length of hydrocarbon tails
Does phospholipids form cell membranes?
Yes, they are the most abundant and important constituents of the lipid bilayer of cell membranes. Phospholipids have a polar head group and two hydrophobic hydrocarbon tails. The tails are usually fatty acids, and they can differ in lenght (normally, their lenght ranges between 14 and 24 carbon atoms). One tail usually has one or more cis-double bonds (that is, it is unsaturated), while the other tail does not (that is, it is saturated). It is the shape and the amphipatic nature of the phospholipid molecules that cause them to form bilayers spontaneously in aqueous solution. One of the most important characteristics of lipid bilayers is its fluidity, which is crucial to many membrane functions.
How do phospholipids associate with water to provide structure to cell membranes?
In a water solution, phospholipids form a bilayer where the hydrophobic tails point towards each other on the interior and only the hydrophilic heads are exposed to the water. Phospholipid bilayers are critical components of cell membranes.
Cell Membranes are contructed mainly of?
Cell membranes are made of a phospholipid bilayer.
What forms lipid bilayers important in mambrane structure and function?
Phospholipids are the essential 'bulk' part of the lipid bilayer that make up cell membranes. Phospholipids have a hydrophylic (water-loving) phosphate head and hydrophobic (water-hating) aliphatic hydrocarbon tails. When in solution (such as water), such molecules naturally pack together to form a complete structure called a mycelle. In Biology, this of course allows for the formation of membranes- essential for life to exist as it does. In general science, mycelles exist everywhere. For example, when you use washing up liquid, the resulting bubbles are mycelles- as are droplets of oil in water etc.
What makes phospholipids the prime structure for making a cell selectively permeable?
The property of phospholipids that makes them ideal for making up the selectively permeable cell membrane is their ability to form a lipid bilayer. A hydrophilic head and a hydrophobic tail play an important role in the cell membrane.
What example of a lipid which is both polar and non polar?
A type of lipid molecule with polar and non polar regions are phospholipids. Phospholipids are a class of lipids that are a major component of all cell membranes as they can form lipid bilayers.
What is a Phsospholipid?
Phospholipids belong to a group of lipids called amphipathic lipids. The two ends of a phospholipid differ both physically and chemically. One end of each molecule is hydrophilic and is composed of glycerol, phosphate. The other end is the fatty acid portion of the molecule and is hydrophobic and not soluble in water. The amphipathic properties of phospholipids allow them to form lipid bilayers in aqueous solution and are the fundamental components of cell membranes.
