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What happens to unsaturated tails at the sites of their double bonds?
Wiki User
∙ 14y ago
If a tail is "unsaturated," some or all of the carbons are not bonded to the maximum number of hydrogens possible, due to double bonds. These double bonds create "kinks" in the tails; in other words, it is not a straight carbon chain. This gives rise to the ability for the lipid to have a lower freezing point because the tails don't "pack" together.
This is especially important in the phospholipid bilayer of a plasma membrane. Unicellular organisms which inhabit colder-temperate climates are more likely to have unsaturated phospholipid tails. The "kinks" in the tails prevent the fluid membrane from freezing during the colder months.
Wiki User
∙ 14y ago
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What is polyunsaturated fat?
It is a fatty acid lipid [Lipids are Oils from Plant sources and Fats from Animal sources] that contains more than one [unsaturating] -C=C- double bond.Saturation, in this instance, refers to the state where all potential Carbon sites of double bond formation are taken by hydrogen atoms.
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Saturated. This is because with no carbon-carbon double bonds the bonding sites are taken up by hydrogen, thus saturated. These saturated fats are solider tha unsaturated fats containing carbon-carbon double bonds.
What is the difference between saturated and unsaturated bonds?
If a compound is saturated, this means that every bonding site is occupied by an element or an electron pair, and the compound doesn't want any more bonds. For example, saturated fats are hard to break down because there are no bonding sites. If a compound is unsaturated, this means it can still make bonds because open bonding sites are readily available. For an individual bond to be saturated, it can only be a SINGLE bond. Double, or triple bonds are not considered saturated.
What is the difference in saturated and unsaturated fats?
Fats are made out of fatty acids and glycerol. Fatty acid = alkyl group ( long carbon chain basically) plus a carboxyl group but thats not the improtant part. Fatty acids can undergo dehydration with glycerol to make a triglyceride which is the conventional fat in foods and stuff etc. There difference between saturated and unsaturated fats is the long carbon chain. The long carbon chain which can have double bonds or not. A double bond decreases the maximum number of hydrogen atoms joined to the carbon atoms so they dont have the most hydrogen atoms a they could do so they are unsaturated. Satured = no double bonds.
What is polyunsaturated fat?
It is a fatty acid lipid [Lipids are Oils from Plant sources and Fats from Animal sources] that contains more than one [unsaturating] -C=C- double bond.Saturation, in this instance, refers to the state where all potential Carbon sites of double bond formation are taken by hydrogen atoms.
What process is used to convert an unsaturated fatty acid into a saturated fatty acid?
Hydrogenation. This involved the forcing of hydrogen molecules into an unsaturated fat molecule which then causes it to be "saturated" with hydrogen atoms. This breaks the double bonds which gave the fat its bent shape and as a result hydrogenated fats are not chemically equivalent to natural saturated fats.This is why trans fat has been found to be much worse than natural saturated fat.
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