Synthesis Definition and 154 Threads

Hi all, I was just wondering, what stimulus activates protein synthesis? I already know the steps of protein synthesis but is there a particular mechanism that triggers the RNA polymerase to start transcription? In other words, how does the body know when to produce proteins? Is it possibly...

I've just been reading a little bit about attempts to create element 120 back in 2007. Do you guys think that it will be possible to create such an element?

I've been looking into expanding some research time into carbon nanotube synthesis thinking that it was still an obstacle to be able to produce a carbon nanotube long enough to be used for anything. I just found a YouTube video from rice university where they used a wet spin technique to produce...

Hey everyone! I am currently working on a project regarding the synthesis of variously substituted isatins using the Sandmeyer methodology, involving the condensation of chloral hydrate, hydroxylamine and substituted aniline (in this case the 4-ethylaniline) to nitrosoacetanilide with...

I was searching some info in this forum and I found something here: https://www.physicsforums.com/showthread.php?t=160186 As far I know you've to mix carbon dioxide and hydrogen and the result is methanol. I want to understand more technical information, like the amount of each gas that...

so i know that 2-pentanol can be synth'd from 2-pentene+H20 however, i'd like to know if its possible to synth the molecule via a fermentation reaction all i have so far: __ ______ --> __ C5H12O + __ CO2

given humans have 64 possible codons, I am imagining a crowd of tRNA, each carrying an amino acid, swarming clumsily with random thermal motion around a ribosome with a feed of mRNA. How do the tRNA anti-codons find the right mRNA codons so quickly?! I saw a video that shows the amino acids...

Homework Statement I am not able to clearly understand the role of t-RNA in the synthesis of proteins using m-RNA as a template. please explain how does a t-RNA supply an amino acid?? Homework Equations The Attempt at a Solution

Wouldn't you need an ATP to actually add the P to ADP? ...So then nothing would really be accomplished because you'd have to use an ATP to make a different ATP. Or is there a different type of energy that can add P to ADP? My book says that the ADP + P reaction uses energy from...

The standard model was created, not to conform to anyone's a-priori theoretical ideas, but just to match experiment. In the decades after that, we had the long march through unifying ideas that culminated in M-theory, and the creation of thousands of models of BSM physics, featuring...

A student I am tutoring has asked me to help him formulate a synthesis pathway for the compound N-ethylpent-4-enoate. I have spent countless hours trying to determine the structural formula for this compound without success. I must be missing something so obvious... Like leaves in a...

I know that first we have to add H2 and a Lindlar catalyst in order to produce what is the reactant. I thought adding O3 would be an ozonolysis reaction. An ozonolysis reaction should yield this: I don't know why they added the Zn and CH3CO2H, though. What does this even do in the...

Hello, I am doing an experiment in which I will have a halophenol, and with KOH in ethanol and an alkyl tosylate, I will need to create an ether. The first step is to add the KOH and alkyl tosylate, and I should almost have an ether (ring with halogen attached to it and an OR hanging off...

Homework Statement The partial burning of coal in the presence of O2 and H2O produces a mixture of CO(g) and H2(g) called synthesis gas. This gas can be used to synthesize organic compounds, or it can be burned as a fuel. A typical synthesis gas consists of 55.0% CO(g), 33.0% H2(g) and 12.0%...

Hi all! I am currently doing trials on different fertilizer production methods. I want to make urea sulfate crystals from fertilizer grade urea granules (46% N) and sulfuric acid. I suspect it would be a straightforward process, dissolve the urea in acid and precipitate the crystals and...

There have been some recent announcements in the news about the synthesis of Uranium Nitride. One announcement from Los Alamos National Labs mentions the use of photolysis to achieve the desired material...

Homework Statement I'm having a hard time deciding exactly what the mechanism would be for CH3CH=CHCH3→CH3C\equivCCH3 Homework Equations The Attempt at a Solution My professor only explained half of the mechanism quickly assuming the rest would be obvious, so I know that it will...

Given 3 molescules: 1-chloropropane, 1-butyne, and a benzene ring, how do I synthesize 1-butyl-3-propylbenzene? my question is, how do I get 1-chloropropane or 1-butyne on the ring without having branching? these 2 must be the starting material. I don't see how F&C alkcylation would work.

Homework Statement http://img51.imageshack.us/img51/9563/chem3.png Homework Equations The Attempt at a Solution I know the answer has to be a or c because you need the ammonia to make this reaction happen but I don't know whether you would want to use 3-oxobutanenitrile or...

Homework Statement Hi, I am trying to complie my counter (writen in system verilog) using synopsys design compiler. It comes out this error: The expression in the reset condition of the 'if' statement in this 'always' block can only be a simple identifier or its negation. (ELAB-303) ***...

Can anyone help me describe the steps of the enzyme synthesis diagram. Please describe each step 1, 2 ,3 http://www.bbc.co.uk/scotland/learning/bitesize/standard/biology/investigating_cells/enzymes_and_aerobic_respiration_rev4.shtml THANK YOU

Could anyone tell me something about colloidal synthesis of nanoparticles in general? I have searched a lot and couldn't find any general explanation. Every text is written about some certain kind of nanoparticles and all of those methods are very different. Thank You!

Hello, I'm not sure if this is the right place to write this thread, but I have a question about attempting to synthesize a piano in MATLAB. I am very new to MATLAB and DSP in general and my project is trying to create a piano sound using whatever means (FM synthesis, additive synthesis...

hey everybody, I am a newcomer here, just stumbled upon this forum whilst reading about different university programs. i would really appreciate any advice regarding an academic plunge into the engineering field as a means to learn more about music synthesis, particularly analog synthesizers...

Hello, If I can make any number of waves (n) all with the same phase but all within a frequency range of 100-200hz, what are the ranges of frequencies I can make when adding them? So would I be able to make a wave with frequency 400hz, or 25hz, using additive synthesis and these constraints...

" Write an alternate reaction that can be used to prepare the same product that we got in our lab ( changing the metal in the alkoxide or halide leaving group is not sufficient.) Explain the reaction you used, is it expected to be cheaper cost wise, and or produce a higher yield, based on the...

This is the link for the assignment: http://imageshack.us/f/840/assignmentsynthesisofev.jpg/ Homework Statement Given in the link Homework Equations Why would the proposed synthesis be successful if the reaction stopped after 2 hrs? How does H attack compound 2 to create compound...

So I'm performing the reaction using: urea + diethyl n-butylmalonate ----NaOEt---> n-butylbarbituric acid My question is, after adding everything, you mix it and heat it, what is the solid that separates during this reaction? I've been thinking it might be diethyl n-butylmalonate but...

Okay so besides anhydrous diethyl ether, what other solvents could I use for a Grignard? What makes it a good solvent and what makes something a bad solvent? I know we want something that isn't miscible with water in the least bit because this would kill the reaction, but what else? Thanks

Hello! I am at a loss as to the cause of an energy potential from a concentration gradient. Take for example the H+ concentration gradient across the innermembrane in mitochondria. The greater concentration of H+ in the intermembrane space relative to the matrix results in an electrical...

I am a high school chemistry AP student. In class, my teacher told us about how benzene's delocalized ∏ electrons can donate to a metal but it is not a strong bond. I wanted to know if it was possible to make a coordination compound that was also a polymer by using a biarene ligand, one end...

Homework Statement I'm a little confused as to how the nucleolus in a eukaryotic cell manages to synthesize proteins. For example, in the nucleolus, does it contain DNA that it uses to synthesize ribosomal RNA, which then synthesizes ribosomal subunits? Then the ribosomal subunits go out into...

Is there a way to synthesize glucose, or any other high energy sugars, from simpler compounds? What are the compounds and how can they be converted into glucose? Can you describe the reactions that take place to form glucose? This is what I mean, as an example: Say we have methane, or CH4...

I have been thinking about attempting a synthesis of nitrobenzene compounds, with a long-term prospect of synthesizing aspirin. I have some questions regarding the synthesis. During the addition of the nitro group to benzene, I only want molecules with a single nitro group. How do I...

? Or the process chemistry behind the synthesis of Carbon 60

No, this isn't a homework question... Would it be feasible to use a tertiary haloalkane with sodium ethoxide, then use the ethanol formed from the deprotonation of the haloalkane in the E1 reaction for the synthesis of aldehydes or keytones? Just thinking it could be an alternative way...

I'm working with a television production company on a new project - we're looking at using "backyard methods" to produce diamonds (nothing special, we'll be happy with industrial grade for the show), namely using an unconventional technique reportedly used by the soviets during the cold war...

I am interested in reactions of the type C2H5COCH3 + KH -> C2H5COCH2K + H2 In this paticular reaction, I understand that the participating hydrogen is beta to the carbonyl group since the oxygen's electronegativity makes the beta-hydrogen atoms acidic, and KH acts like a base. However, would...

Hello everyone, Quick question. I can understand proteins are needed to make everything in the cell, so if you inhibit bacterial protein synthesis, cell division can not occur. However my question is does the DNA replicate and divide, and then the cell can not make other things they want so...

In the synthesis of ester, how does conc. aqueos calcium chloride remove excess ethanol? I tried google, and found out that a complex is formed. How is this possible? If then what exactly is the complex formed? Thanks. :smile:

Homework Statement I have trouble with finding out the product or equations and i don't understand them could someone please help me with figuring it out Homework Equations copper + sulfur > copper(II) sulfide 8Cu + S8 > 8CuS The Attempt at a Solution How is the sulfur charge 8 ...

Homework Statement Mass of Ferrous Ammonium Sulfate (limiting reagent) = 4.00 grams. Mass of K3[Fe(C2O4)3].3H2O = 2.54 grams. QUESTIONS: 1. Using the above mass of ferrous ammonium sulfate calculate the theoretical yield of the K3[Fe(C2O4)3].3H2O 2. What is the percent (%)...

Homework Statement http://i.imgur.com/H8p56.jpg 2. The attempt at a solution I'm not quite sure how to start this one... I would assume organolithiation could get me started for the two combining, but I'm not quite sure how to get the 3' carbon to spout that ehtyl group or how to...

Homework Statement In my Chem lab we synthesized zinc iodide. To 1g granulated zinc, 2ml distilled water and 4 drops of 2 M acetic acid was added. Then 1g of iodide. The mixture was agitated and several minutes later the reaction completed. There was some excess zinc, so we set up a...

It's been known for some time that synapses are strengthened during the brain's processing of new information. This includes passive activities such as listening to music. However, the linked article discusses new research that indicates the RNA linked protein synthesis that occurs with synapse...

Homework Statement The asteroid Icarus, though only a few hundred meters across, orbits the Sun like the other planents. Its period is about 410 d. What is its mean distance from the Sun? Homework Equations Keplers Law T_1 ^2 / T_2 ^2 = S_1 ^3 / S_2 ^3 The Attempt at a Solution...

Homework Statement 13) (II) At what distance from the Earth will a spacecraft on the way to the Moon experience zero net force due to these two bodies becasue the Earth and Moon pull with equal and opposite forces? Homework Equations NET F = ma G = 6.67 E-11 (Nm^2)/kg^2 Fg =...

Homework Statement Write the complete mechanism for the acid-catalyzed formation of aspirin from salicylic acid and acetic anhydride Homework Equations The Attempt at a Solution I basically know the reaction but I'm not sure how to start the mechanism...Like i know that it is a...

Why is ATP synthesis reversible on the F1 subunit? What is the point of this? Why is ATP synthesis reversible on the F1 subunit? What is the point of this? They did some experiment a long time ago where they took F1 subunit and mixed it with ATP and water, with the Oxygen radioisotope...

I have a couple questions regarding the transformation of graphite to diamond. As I understand a common method of diamond synthesis involves applying high pressure and high temperature to a graphite sample for a few days and then removing the high temperature and finally the high pressure to...