Quick academic help
Don't let the stress of school get you down! Have your essay written by a professional writer before the deadline arrives.
Scientists sometimes broadly define lipids as hydrophobic or ..
A new unsaturated methyl-branched fatty acid, 9-methyl-16:1(n-6) and theuncommon 11-methyl- 18:1(n-6) were found in the lipid extract of a new strain ofbacterium associated with the alga ). Anothernovel methyl-branched fatty acid, 10-methyl-18:1(n-9), was found in the lipidextract of the marine fungus
todescribe phospholipids carrying a covalent bond (C-P) between posphorus and the carbonof the nitrogenous base ().
First description of a glycosphingolipid containing a large quantity of fucose(1 out of 4 carbohydrate residues) ("fucolipid") in adenocarcinoma cellsfrom human stomach ().
Mattson FH determined that in intestine, triglycerides are preferentiallyhydrolyzed at position -1 and -3.
Biosynthesis of Lipids and Hydrocarbons in Algae | …
purified a phospholipid (phosphatidylcholine) from egg yolk onan alumina column ().
Baer E described the synthesis of phosphatidic acid by treatment ofdiacylglycerol with diphenylchlorophosphate and removal of the phenyl group bycatalytic reduction ().
Hofman K et al.
described a type of membrane lipoproteins, proteolipids, whichare soluble in a mixture of chloroform and methanol ().
First description of the countercurrent separation of "the higher normalfatty acids" (C5-C18) ().
Galactosamine was identified in brain gangliosides ().
First description of the cholesterol lowering effect of a plant sterol (beta-sitosterol)in cholesterol-fed chickens(
Although there is quite few information on lipid biosynthesis and ..
Lipids are a structurally heterogeneous collection of molecules made largely of carbon and hydrogen with a little oxygen, although nitrogen and phosphorus are often thrown in as well. The feature these disparate molecules have in common is that they are hydrophobic.
Glycerophospholipids are major constituents of membranes and are responsible for the membrane being a bilayer.
Why choose our assistance?
As soon as we have completed your work, it will be proofread and given a thorough scan for plagiarism.
Our clients' personal information is kept confidential, so rest assured that no one will find out about our cooperation.
We write everything from scratch. You'll be sure to receive a plagiarism-free paper every time you place an order.
We will complete your paper on time, giving you total peace of mind with every assignment you entrust us with.
Want something changed in your paper? Request as many revisions as you want until you're completely satisfied with the outcome.
We're always here to help you solve any possible issue. Feel free to give us a call or write a message in chat.
Biosynthesis and Function of Chloroplast Lipids | …
Chloroplast membranes are composed of four unique lipids, including monogalactosyldiacylglycerol (MGDG), digalactosyldiacylglycerol (DGDG), sulfoquinovosyldiacylglycerol (SQDG) and phosphatidyl-glycerol (PG). These lipids are crucial for maintaining the function of chloroplasts not simply because they account for a large fraction of the photosynthetic membranes, but because they are assembled into the photosynthetic machinery and are, therefore, directly involved in photosynthetic processes. Indeed, Ara-bidopsis mutants of these lipids possess some photosynthetic defects. Diacylglycerol (DAG), a common precursor of the glycolipids, is produced by both prokaryotic and eukaryotic pathways but the detailed mechanism of DAG supply to chloroplasts remains ambiguous. Because most of the genes encoding the lipid-synthesizing enzymes have been identified in this decade, significant progress delineating the physiological functions and regulatory mechanisms of lipid biosynthesis in chloroplasts has been achieved. In Arabidopsis, two types of MGDG synthases, Type A (AtMGD1) and Type B (AtMGD2, AtMGD3), were identified and their distinct functions in chloroplasts have been unveiled. Type A MGDG synthase is involved in the bulk of MGDG synthesis whereas Type B MGDG synthase is induced under phosphate (Pi)-limited conditions. Two genes, DGD1 and DGD2, for DGDG synthases, which are involved in DGDG synthesis, were identified. DGD1 is the predominant DGDG synthase whereas DGD2 is induced under Pi-limited growth conditions. SQDG synthesis is mediated by two enzymes, SQD1 and SQD2. The key enzyme for PG synthesis is PG phosphate synthase, which is encoded by two genes, PGP1 and PGP2. Plants have homeostatic mechanisms to balance the amount of these lipids by regulating their biosyntheses under various environmental conditions, such as limiting Pi, which stimulates replacement of phospholipids with glycolipids through regulation of enzymes involved in lipid biosynthesis.
and regulatory mechanisms of lipid biosynthesis in ..
These are somewhat more complex lipids with a superficial resemblance to glycerophospholipids. All of them contain, instead of glycerol, the fatty acid derivative sphingosine.
Lipid Metabolism - The University of Texas Health …
Sphingolipids have a fatty acid (sometimes a very long one) attached to the amino group of sphingosine and a compound X attached to the terminal hydroxyl group of sphingosine. Here are some examples:
the lipid biosynthesis pathway ..
Sphingolipids play important roles in certain membranes. They are often involved in signaling. Just like any other biochemical compound, they have to be broken down eventually. Lesions in the degradation pathway of certain sphingolipids can cause very serious diseases such as Tay-Sachs.
How it works
You submit your order instructions
We assign an appropriate expert
The expert takes care of your task
We send it to you upon completion
Average quality score
"I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."
"Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."
"Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."
"Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."
"Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."
"Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."