Unsaturated Fatty Acid

Question: what is the different between saturated fatty acid and unsaturated fatty acid? what is monounsaturated fatty acid and polyunsaturated fatty acid? what type of bonding (hydrocarbon chain)in saturated fatty acid and unsaturated fatty acid

Answer: Saturated fatty acids do not have any carbon-carbon double bonds in their hydrocarbon chain. A saturated fat may look like this (ignore the dots): ..H...H...H ...|....|.....| - C - C - C - ...|....|.....| ..H...H...H An unsaturated fatty acid has at least one carbon-carbon double bond in its hydrocarbon chain. It may look like this (ignore the dots): ..H..H...H ...|...|.....| - C=C - C - ...|...|.....| ..H..H...H A monounsaturated fatty acid has just one carbon-carbon double bond. A polyunsaturated fatty acid has more than one carbon-carbon double bond. You can test for saturation by adding bromine water to the fatty acid. Bromine water is decolourised by unsaturated fats.

Question: Why the double bond in unsaturated fatty acid chain cause bending? Why the double bond in unsaturated fatty acid chain cause bend and what is the effect of that bend on the overall function of lipid?

Answer: I think it is cause by the strain energy of the double bond.

Question: Why do the clod blooded animals have higher unsaturated fatty acid ratio than warm blooded ? The cells of poikilothermic or clod blooded animals have a higher ratio of unsatuarated fatty acids than that of warm blooded animals.What is the reason for this ? Please help me in this question !!! Thank you !

Answer: This has to do with cell membranes. Warm blooded animals maintain a uniform temperature within the body whereas cold blooded animals do not. So when the temperature is very low, the cell membranes of cold blooded animals would tend to form a solid gel like structure But if unsaturated fatty acids are present in the membrane, it helps to maintain a more random, fluid state at lower temperatures So, this actually prevents the freezing of poikilotherms from getting frozen at low temperatures

Question: How does the structure of an unsaturated fatty acid differ from the structure of a saturated fatty acid? Also, an example of a food that contains each. Links are helpful. Thank you! 10 pts. best answer.

Answer: The hydrocarbon tails of the fatty acids of saturated fatty acids are all saturated (no double bonds between the Cs eg no C = C.). In unsaturated fatty acids there are C=C bonds in the tails.

Question: How would a plasma membrane behave if its fatty acid tails consisted mostly of unsaturated fatty acids?

Answer: It would be more loose and fluid like.

Question: What is a fatty acid? What is the difference between saturated and unsaturated fatty acid?

Answer: A fatty acid is a carboxylic acid with a long aliphatic tail Difference between saturated and unsaturated structurally is saturated acids contain single bonds where as unsaturated acids contain double or triple bonds. Saturated are solid at room temperature and have a higher melting point (ex. butter) Unsaturated is liquid at room temperature with a lower melting point (ex. oil)

Question: What is the difference between a saturated and an unsaturated fatty acid? ? And Glycerol is a type of compound know as....what???

Answer: Saturated fatty acids have all single bonds between the carbon atoms. Unsaturated fatty acids have one or more double bonds between carbon atoms. Polyunsaturated fatty acids have two or more. Glycerol is a triol or tribasic alcohol.

Question: what is the difference between a saturated and an unsaturated fatty acid?

Answer: A saturated fat means that they have no double bonds between the carbon atoms of the fatty acid chain and are thus fully saturated with hydrogen atoms A unsaturated fatty acid means that some of the carbon to carbon bonds have double bonds and therefore they are not saturated with hydrogen atoms.

Question: What is a saturated and an unsaturated fatty acid?

Answer: Saturated means that there are no double bonds, and that every carbon is bonded to four other atoms. For most C atoms in a chain, that means each is bonded to two Cs and 2 Hs, except the ones at the end of the chain (1 C, 3 H) or possibly if the chain is branched. An unsaturated fat has double bonds, meaning that each atom could potentially be bonded to more H atoms. Hence, it isn't saturated by hydrogen. Saturated means as much hydrogen as the molecule can possibly hold, based on the number of C atoms.

Question: Is it possible for an unsaturated fatty acid to be or become (through heating) an hydrogenated or partially? hydrogenated molecule, thus affecting its propensity to clog arteries ?

Answer: noooooooooooooooooo

Question: how does a a saturated fatty acid and a unsaturated fatty acid differ in molecular structure?

Answer: Saturated fats contain no double bonds between their carbon atoms. They are linear molecules that can lie flat upon each other forming a solid at room temperature. Though palm and coconut oil are liquid plant saturated fats. Unsaturated fats contain some double bonding between their carbons givingthem a kink in the linear molecule. This kink is a bend that allows the molecules to remain a liquid at room temperature.

Question: What is a chemical test that could be carried out to distinguish between saturated and unsaturated fatty acid.?

Answer: most likely bromination. bromine will add across the C=C bond of an unsaturated fatty acid, so the brown colour should disappear, but bromine will not add across the molecule if it is saturated, so the brown colour will remain.

Question: how would the membrane behave if its fatty acid tails consisted mostly of unsaturated fatty acids?

Answer: Unsaturated, short chained fatty acids decreasing the melting point (increasing the fluidity) because unsaturated fatty acids produce "kinks" or "bends" in the molecule and this "pushes" adjacent fatty acid tails farther apart preventing "close packing" and increasing fluidity. Also because of the many "kinks" in unsaturated fatty acids that push adjacent neighbors apart, in essence making the membrane more "porous" the permeability of the membrane is also increased to many different compounds. Well, hope that helps

Question: What is an unsaturated fatty acid with the first double bond on the 3rd carbon from the methyl end?

Answer: Omega 3 fatty acid

Question: What is an unsaturated fatty acid with the 1st double bond on the 6th carbon from the methyl end?

Answer: Omega 6 fatty acid

Question: how would a phospholipid membrane act if the fatty acid tails consisted mostly of unsaturated fatty acids?

Answer: The membrane should be more flexible. Think about just saturated vs. unstaturated fats. Unsaturated fats (ie olive oil) are liquid at room temperature because the double and triple bonds prevent tight packing of the molecules. Saturated fats (ie butter) are solid at room temperature. The relative lack of double and triple bonds allow the molecules to pack more tightly and therefore be less flexible. The increase in flexibility should not affect overall membrane integrity though. The fats are still hydrophobic and it would still be energetically unfavorable for the membrane to be broken and exposed.