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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

What kind of vitamin is protein?

If you need to add amino acids to your diet, consider vitamin supplements. Many amino acids natural vitamins available today can help you effectively process vitamin consumption, thereby building up amino acids stages in your body. There are many reasons for seeking to increase amino acids stages, from improving muscular to enhancing overall health.

How enzymes are globular?

Besides fibrous proteins, that have only one type of secondary structure, globular proteins, including enzymes, transport and structural proteins, some peptide hormones, and immunoglobulins, are folded structures much more compact than alpha (helices) or beta (sheets) conformations.


Moreover, globular proteins, with random or repetitive conformations, have roughly spherical shapes. Globular proteins usually exhibit little or no change untill a point is reached at which there is a sudden drastic change and, invariably, a loss of biological function (e.g., structural proteins) or their enzymatic activity (for enzymes), a phenomenon known as denaturation.


Finally, to understand the terciary structure of globular proteins there are two powerful techniques to do it: X-ray or neutron diffraction analysis of single crystals, and NMR analysis (Nuclear Magnetic Resonance) of small proteins in solution.

Why is it called a RNA primer?

The RNA primer is referred to a short RNA fragment into which are added deoxyribonucleotides by DNA polymerase III during DNA replication. The primer stimulates the synthesis of the new chain by participating in the initiation of polymerization of the desoxyribonucleotides. In nucleic acid chemistry, a primer can be a short, either single-stranded RNA or DNA, segment that functions as the starting point for the polymerization of nucleotides.

What is 1.33 cups of sugar in metric units?

I've got two answers. The quickie method, says that quarts and liters are about the same, and if I've got one cup, that would be around 250 ml, and a third of a cup is (0.33 x 1000 ml) or 33.3 ml, so 250+33.3 = 283 ml or 0.28 liters. Ok, now the calculator method. (0.945 liters/1 quart)/(4 cups/ 1 quart) = 0.23625 cups/liter and 0.23625*1.333 = 0.315 liters or 315 ml. A liter is a bit more than a quart, so my quickie method will slightly underestimate volumes. Conversion values can be found on: http://www.onlineconversion.com/volume.htm

What are alt enzymes?

ALT enzymes are alanine transaminase in your liver.ÊThe level of ALT enzymes raises when you have liver problems and you should probably see your doctor.

Where is the Operon located in DNA?

An operon is actually a functioning unit of genomic DNA that contains a cluster of genes under the control of a single regulatory signal or a prometer. The genes are translated together in the cytoplasm.

Is it possible for mutations to go unnoticed in mRNA?

Yes it is. There are more triplet codons than there are [biologically active] amino acids that need to be represented in the Cell, so that there is some duplication of codon/amino acid 'alignment'. This occurs only in the third base position of the triplet codon - the 'wobble base' position - so if a mutation occurred in the wobble (third) position and the codon was one of the few that was not alone in its amino acid specificity this mutation would go unnoticed.

Difference between fat and oil?

Fat and oils are similar chemically, but the subtle differences that do exist have major effects on health. Fats and oils both consist of molecules that have 'backbones' of long chains of carbon and hydrogen atoms chemically bonded together.

These molecules are called 'fatty acids'. Fats and oils in the diet (and most fat in the body) contain three fatty acids chemically bonded to form one fat molecule.

A fatty acid may be 'saturated' with hydrogen (ie, all the carbon atoms along the fatty acid backbone have the maximum possible number of hydrogen atoms attached), 'monunsaturated' (two adjacent carbon atoms have less hydrogen atoms) or 'polyunsaturated' (more than two carbon atoms along the fatty acid backbone have less hydrogen atoms)

Fats from other animals (eg pork, chicken) are less saturated than ruminant fat and contain some polyunsaturated fatty acids.

Fats from game meat (eg, kangaroo, deer) tend to be lower still in saturated fatty acids and often contain significant quantities of a range of polyunsaturated fatty acids. Fats from fish are generally highly unsaturated and contain a form of polyunsaturated fatty acid known as 'omega-3' -

Because butter and margarine both contain some water (about 20%), they provide ~30 kJ per gram. Cream contains even more water, so the energy content of 1mL (~ 1gram) of cream is ~14 kJ.

Cooking oils and fats generally contain little or no water, so they provide the full 37 kJ per gram. Although all pure fats provide about the same amount of energy, there is some evidence that the effects of fats on weight gain differ according to their chemical composition.

It appears that the degree of saturation influences the amount of weight gained or lost on an otherwise similar diet.

What effect do detergents have on virus like particles?

Detergents do not kill the viruses, probably. But they act on viruses by their surface lowering action. You can simply wash away the viruses and get rid of them. Special care is needed to clean the nail folds. Sufficient time has to be given to wash the hands.

Why tyrosine is simple amino acid?

It is an nonessential amino acid but I would not call it's structure that simple.

Which element it is too large in human body iron or iodine?

Iron. It is there in grams. Iodine is there in milligrams.

Non steroid hormones could be?

There are two other types. They are proteins and amines.

Why is lysine important?

Lysine is important for proper growth.

Its also helps lower cholesterol and plays many important roles in the human body. However the human body cannot make this protein and it has to be ingested from foods like soybeans, milk, and chicken.

What b vitamin works as well as a statin for cholosterol?

Niacin (Vitamin B3) has been shown to improve cholesterol levels by decreasing LDL (bad) cholesterol and triglycerides, while increasing HDL (good) cholesterol. It is often used as an alternative to statins in managing cholesterol levels. However, it is important to consult with a healthcare provider before using niacin for cholesterol management.

What does an isomerase enzyme do?

As by the name the reaction they catalyse is to change the chemical compound in its isomeric form or we can use isomerase enzymes in transfer of groups within the molecules to yield isomeric frorms.
e.g
the enzyme phosphohexose isomerase catalyzes the reversible isomerization of glucose6-phosphate, an aldose to fructose 6-phosphate, a ketone

Why must proteins must be removed before quantitative analysis of DNA by the Dische reaction?

Because dna is most of the time coiled around several types of proteins called histones and have interactions with other proteins necessary in the formation of the chromosomes. Also some dna such as in bactyerial cells, ribosomal dna are simultaneously attached to the circular dna during translation and transcription.

How long should you wait to fly after donating blood?

It's recommended to wait at least 24 hours before flying after donating blood to allow your body time to recover fully. Flying can lead to decreased oxygen levels and pressure changes, which may affect you more if you have recently donated blood.

Which is a product in the Calvin cycle?

One of the products in the Calvin cycle is glyceraldehyde-3-phosphate (G3P), which can be used to regenerate RuBP for further carbon fixation or can be used to produce glucose and other carbohydrates for the plant's growth and energy production.

What area of the nephron is sensitive to the hormone aldosterone?

The distal convoluted tubule and the collecting duct are the areas of the nephron that are sensitive to the hormone aldosterone. Aldosterone acts on these segments to regulate the reabsorption of sodium and water, helping to maintain electrolyte balance and blood pressure.

How does someone get Theobromine poisoning?

Theobromine poisoning is also known as chocolate poisoning and it is common in animals such as cats and dogs. It is not common in humans since humans do not tend to ingest large amounts chocolate.

Quaternary structure of proteins?

The quaternary structure is the overall structure of an enzyme complex. This is made of at least two separate polypeptide chains. The 3D structure of one polypeptide is known as the tertiary structure.

What effect does prolactin have on a pregnant woman?

The effect that prolactin has on a pregnant woman is that it stimulates the mammary glands to produce milk.

How many monosaccharide molecules are needed to form a maltose molecule?

It takes 2 monosaccharide molecules to form a maltose molecule. Those are 2 glucose molecules. So 2 glucose molecules join together to make 1 maltose molecule.

What effect does Deoxyribonuclease have on DNA polymers?

Deoxyribonuclease is any enzyme that catalyses the hydrolytic cleavage of the phosphodiester bond links in the DNA back bone (aka the bits between the pentose's).

So because it shares the characteristics of a nuclease it has a mojor effect on the DNA itself. Depending on the specificity of the particular deoxyribonuclease it has the potential to dissintegrate a DNA polymer- essentially making it impossible for division.

This principle is why it is an effective enzyme to be inhaled by those suffering from Cystic Fibrosis.