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Lipids are hydrophobic or ambiphilic small molecules.
In water, hydrophobic lipids such as oils and fats clump up and separate from the water.
In water, ambiphilic lipids such as phospholipids form bilayer structures; the body of living creatures uses these bilayer structures to form cell membranes and vesicles.
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∙ 12y ago
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Lipids differ from other large biological molecules in that they?
Lipids are different from other macromolecules because they are hydrophobic and don't dissolve in water.
What category of biological molecules are steriods included in?
lipids
What do you conclude about the solubility of lipids in polar solvents such as water?
Lipids are non-polar molecules that DO NOT usually dissolve in water but DO usually dissolve in organic solvents. Lipids are fat molecule and think about adding eg oil (fat) to water. They don't mix. You always need an emulsifier (eg soap)
Which molecules are types of lipids?
Nonpolar organic molecules are lipids...including tryglycerides, phospholipids, steroids, waxes, and pigments.
What molecules make up proteins?
amino acids
Are lipids organic or inorganics?
Lipids are organic molecules that are naturally occurring and they are insoluble in water.
What polar molecules are attracted to water?
Hydrophobic molecules do not dissolve in water. This is because water is hydrophilic. Another way to say this is that lipids, which are nonpolar, cannot dissolve in water, which in polar.
What molecules in membranes allow lipids and water to mix?
the answer is that it is luck
How are lipids different from other organic molecules?
they are not soluble in water
Are lipids hydrophobic or hydrophilic?
Lipids are hydrophobic. This quality means that they repel water rather than draw it in.
Which of the major types of biological molecules does NOT consist of monomers and polymers?
The major type of biological molecules that does not consist of monomers and polymers are Lipids. Although triglycerides are created by the combination of similar molecules, others, steroids, are not.
What goes through the cell?
Nonpolar molecules (example: lipids) Small polar molecules such as water
Why water cant mix with lipids?
Lipids are fat molecules, like solid oils. They contain lots of carbon atoms, so they cannot dissolve because the molecules do not break apart in water.
Are a large and varied groups of molecules that are usually not soluble in water?
lipids
What do molecules do in water?
Hydrophobic molecules do not dissolve in water. This is because water is hydrophilic. Another way to say this is that lipids, which are nonpolar, cannot dissolve in water, which in polar.
What statements is false for the class of biological molecules know as lipids?
They are soluble in water
When lipids and water are mixed do the water molecules isolate themselves into droplets?
This is possible only if the ratio of lipid is massive to the ratio of water. However, this is usually not the case. In most cases, when lipids and water are mixed, the hydrophobic properties of the lipids cause the lipids to coalesce at the top of the water without mixing, because that lipids are less dense than water.
