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Biochemistry
Biochemistry is the study of the structure, composition and chemical processes in all living organisms. It covers the structures and functions of various cellular components, including proteins, carbohydrates, nucleic acids, lipids, and other biomolecules.
8,065 Questions
Mixing rubidium gunpowder with silver nitrate and capping it would likely produce a chemical reaction resulting in a flash of light, making it more of a flare rather than a decent explosive. The reaction between the two compounds may release a significant amount of light and heat but may not produce a large explosion typically associated with high-explosive materials. Additionally, using these chemicals in a confined space could be dangerous and should be avoided.
What happens when a diatomic molecule loses an electron Does the bond weaken?
No, it is not correct to say that the bond energy always decreases when a diatomic molecule loses an electron. F2 and O2 are counterexamples to this point. When a molecule loses an electron, it will come from the highest occupied molecular orbital. In both O2 and F2, this MO is an antibonding MO. Removing an electron from an antibonding MO *increases* the bond energy.
The polyamines are organic compounds having two or more primary amino groups - such as putrescine, cadaverine, spermidine, and spermine - that are essential molecules in both eukaryotic and prokaryotic cells. Cyclen is the main representative of a class of cyclic polyamines. Polyethylene amine is a polymer based on aziridine monomer.
How does induction by IPTG differ from induction by lactose via allolactose?
Lactose is eventually metabolized in the cell to allolactose, which binds to the lacI repressor, leading to the induction of the lac promoter (or derivatives of the lac promoters). The allolactose is also eventually metabolised. IPTG does essentially the same as allolactose, however, it does not get metabolized. Moreover, since lactose gets transported in the cell by the lacY gene product and metabolized to allolactose by the lacZ gene product, lactose cannot be used in lacZY- strains for induction. IPTG, however, can be used since it does not require the two genes.
Why are lipids described as non-polymeric?
Unlike the proteins,nucleic acid and polysaccharides, lipids are not polymers.
It is because it do not contain any fixed monomeric units instead it has a long chain of methylene groups (-CH2-CH2-CH2-CH2-)and has a general formula :
CH3-(CH2)n-COOH
What is the radio labeling technique?
Radio labeling is a technique used in biology to track the movement of substances within biological systems, such as cells or organisms. By incorporating a radioactive atom into a molecule of interest, researchers can trace the pathway of the molecule using radiation detection methods. This technique is commonly used in studies involving metabolism, protein synthesis, and other biological processes.
What is a good protein powder for a male?
It is based upon on your body and your fitness. Mostly you have to go for whey protein powder which come with lots of nutrition and vitamins which will help you to make a good physique as well it is helpful in weight loss.
What does resolve mean in gel electrophoresis?
In gel electrophoresis, "resolve" refers to the ability of the technique to separate and distinguish between molecules of different sizes based on their migration through the gel matrix under an electric field. Higher resolution allows for better separation and visualization of distinct bands representing different DNA fragments or proteins.
Saturated fatty acids are so named because they are saturated with?
Saturated fatty acids are so named because they are "saturated" with hydrogen atoms—they have no double bonds between carbon atoms in their hydrocarbon chain. This saturated structure allows the fatty acid molecules to pack closely together, usually resulting in a solid form at room temperature.
Why proline is called imino acid?
The proline side chain forms a closed ring with it's closest carbonyl of the polypeptide backbone. - this is a debated term for referring to proline and hydroxyproline, and is a rather erroneous and antiquated usage.
More accurately, proline is an alpha amino acid that has a secondary amino group, rather than the primary amino group found in the other 19 natural amino acids. A secondary amino group is one in which the nitrogen is single bonded to a hydrogen and two sp3-hybridized carbons, whereas a primary amino group is one in which the nitrogen is single bonded to two hydrogens and one sp3-hybridized carbon.
An imino acid is a compound that has an imino group and a carboxylic acid group. An imino group is when nitrogen is double bonded to a carbon atom and single bonded to either a hydrogen atom or an sp3-hybridized carbon atom.
I'm unable to physically interact with diagrams or images. But generally, a secretory protein is synthesized in the rough endoplasmic reticulum (ER), packaged into transport vesicles, then transferred to the Golgi apparatus for modification and sorting. Finally, the protein is packaged into secretory vesicles and released through exocytosis.
How do you calculate elution volume?
Elution volume is typically calculated by measuring the distance the sample has traveled from the point of application in a chromatography column and dividing it by the total distance the mobile phase has traveled. This ratio allows you to determine the relative position of your compound of interest within the elution profile.
What is the use of guanidine isothiocyanate and NaOAc in the isolation of RNA?
Guanidine isothiocyanate helps denature proteins from the RNA to allow them to be separated from protein for the best isolation of nucleic acids from proteins (can collect all 3 if using TRIzol like reagents)
NAoAc (sodium acetate) usually in 3M/pH8 is used later in the steps for nucleic acid isolation as the salt for ethanol precipitation. If you are going to be doing RNA transcription off of DNA templates that you are precipitating, it is best to use Nh4oAC (ammonium acetate) as the ion is nicer to RNA polymerases once templates are cleaned and being transcribed.
What is the catecholamines effect os sodium and water?
hormones released dy adrenal gland resposible for the stress in the body.
catecholamines because type of catechouls group ans drieved from amino acid tyrosin.
collective term from epinephren(adrenaline),norepinephren(nonadrenaline),adopamin
What organisms produce cellulose?
Plants are the primary organisms that produce cellulose. Specifically, cellulose is made by plant cells, such as those in the stems, leaves, and roots of plants. Additionally, some bacteria and algae also have the ability to produce cellulose.
How many different nitrogenous bases exist and are found in Dna?
There are only 4 nitrogenous bases in DNA. These are adenine, thymine, guanine, and cytosine. Adenine will only pair with thymine, and guanine will only pair with cytosine.
What does a cold temperature do to an enzyme?
Cold temperatures typically slow down enzyme activity by reducing the kinetic energy of the molecules involved, leading to decreased collisions between enzymes and substrates. This can ultimately lower the rate of enzymatic reactions. Extremely cold temperatures can even cause enzymes to denature and lose their functionality.
Is sucrose hydrophobic or hydrophilic?
Sucrose is hydrophilic, meaning it has an affinity for water and can easily dissolve in it. This is because sucrose is a polar molecule, with hydroxyl groups that interact with water molecules through hydrogen bonding.
Major elements and major mineral elements found in cytoplasm?
Major elements that are found in cytoplasm are carbon, hydrogen, nitrogen and oxygen. The type of minerals present in the cytoplasm depends on cell type. Cells making up bones tend to have more minerals such as calcium in it.
One specifies how to build one polypeptide?
"When the product of a particular gene is needed, the portion of the DNA molecule that contains that gene splits, and a complementary strand of RNA, called messenger RNA (mRNA), forms and then passes to ribosome, where proteins are synthesized. A second type of RNA, transfer RNA (tRNA), matches up the mRNA with specific amino-acid, which combine in series to form polypeptide chains, the building blocks of proteins."
So basically, its the gene that starts the whole thing. "Gene" is my final answer.
What is the molarity of 80g magnesium chloride dissolved in 250ml of water?
MgCl2
Molarity = moles of solute/Liters of solution ( 250 ml = 0.250 L )
Get moles MgCl2
80 grams MgCl2 (1 mole MgCl2/95.21 grams)
= 0.8402 moles MgCl2
Molarity = 0.8402 moles MgCl2/0.250 Liters
= 3.4 M MgCl2
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Why is the primary structure of a protein unaffected by heating?
Heating a protein can disrupt its higher-order structures, such as the secondary, tertiary, and quaternary structures, due to the breaking of non-covalent bonds. However, the primary structure of a protein, which is the sequence of amino acids, remains unchanged because it is held together by strong covalent peptide bonds that are not easily broken by heat.
What is the function Heat shock protein?
Heat shock proteins are a group of proteins that are produced by cells in response to stressful conditions, such as heat or other environmental stressors. They help maintain proper protein folding, prevent protein aggregation, and assist in protein transport within the cell. Heat shock proteins play a crucial role in cellular protection and survival under stressful conditions.
What are the advantages of the lineweaver-Burke plot?
The Lineweaver-Burk plot simplifies the interpretation of enzyme kinetics data by transforming the hyperbolic Michaelis-Menten equation into a linear equation. This makes it easier to determine key parameters like Vmax and Km. Additionally, the Lineweaver-Burk plot can help identify different types of enzyme inhibition based on the different slopes and intercepts of the lines.
