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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
Pyroxylin, also known as nitrocellulose, is a highly flammable and explosive material used in the production of lacquers, paints, and explosives. It is derived from cellulose through chemical treatment with nitric acid and sulfuric acid. Pyroxylin is primarily used in the manufacturing of nail polish, leather finishes, and film for photography.
Describe the general structure of Stonehenge?
Stonehenge consists of a circular setting of large standing stones, known as sarsens, topped by lintel stones in the center. The outer circle is surrounded by a circular earthwork bank and ditch. There are also avenues of stones leading away from the main structure.
Why does soap and water remove dirt?
Soap molecules have both hydrophobic and hydrophilic ends, allowing them to surround and lift dirt particles from surfaces. When the surface is rinsed with water, the dirt particles are carried away by the water, leaving the surface clean.
It does, because pH needs to be regulated in order to keep enzymes at an optimum rate of reaction. They can be denatured by extremes in pH. The blood pH is made more acidic by carbon dioxide. This is caused by increased metabolic rate in the body, since carbon dioxide is a waste product of respiration. This would make the blood too acidic, and denature enzymes. So, the body has a way of maintaining a relatively constant pH. This is maintained because by the combination of carbon dioxide with water, forming hydrogen carbonate ions, which are acidic. in this way, homeostasis effects pH.
What is th size of aminoacid in nano meters?
A single amino acid is typically on the scale of about 1 nanometer in size. It can vary slightly depending on the specific amino acid and its conformation, but this is a good estimate for the size of an average amino acid molecule.
What biomolecule turns Benedict's solution purple?
Reducing sugars, such as glucose and fructose, can turn Benedict's solution purple upon heating. Benedict's solution is a chemical reagent used to test for the presence of reducing sugars in a given sample.
Does spectrophotometer and spectroflorimeter are same?
They both measure fluorescence, but a spectrofluorometer usually has adjustable excitation and emission wavelengths via a monochromator; whereas a fluorometer usually measures fixed wavelengths either by filters, monochromators or fixed diodes. Spectrofluorometers are more flexible but fluorometers are much more sensitive, usually 100-1000x more sensitive.
In a cell where is the site of photosynthesis?
photosynthesis happens insidethe orgenelle, Chloroplast. the main ingredetents for photosynthesis are H20(water) CO2 (carbon dioxide) and sunlight
About how long does a human skin cell stay in interphase in mitosis?
A human skin cell typically spends about 18-24 hours in interphase before entering mitosis. Interphase consists of three stages: G1, S, and G2, during which the cell grows, replicates its DNA, and prepares for cell division.
What carbohydrates are in monosaccharide?
Three examples of monosaccharide are glucose, fructose, and galactose. Three other types of monosaccharide are ribose, maltose, and xylose.
What causes false positive or false negative ion results when testing for ions?
False positive ion results can be caused by contamination from external sources or impurities in the testing equipment. False negative ion results may occur due to sample dilution or interference from other ions in the solution, masking the presence of the ion being tested for. Incorrect calibration of the equipment or human error in sample preparation can also lead to inaccurate ion results.
Who invented human growth hormones?
A PERSON NAMED I H8 U INVENTED HUMAN HOHOHOORRRAOMOANS and ur an idiot
Why is it possible for an amino acid to be specified by more then one kind of codon?
Im pretty sure its "Some codons have the same sequence of nucleotides" It keeps repeating nucleotides over and over in the paragraph in my textbook. Mine just goes "Because there are four different bases, there are 64 possible three-base codons. As you can see [it shows genetic code chart], some amino acids can be specified by more than one codon. So I kind of think it has to do with there being so many possibilites.
What term is used to describe the shape of Europe?
The term commonly used to describe the shape of Europe is "peninsula," as it is a large landmass surrounded by water on three sides.
Is radioactive decay the same as organic decay?
No, radioactive decay is not the same as organic decay. The basic difference between radioactive decay and organic decay is that in organic decay, chemical compounds break down and the biochemical structure of the subject changes. This is a natural process that any biological structures will undergo, or it could be induced. In either case, it represents a chemical change. In radioactive decay, the actual atomic nuclei of atoms will break down in some way, depending on the substance being considered. It is the unstable atomic nucleus of given isotopes of elements that undergoes the change, and this is a nuclear or atomic change.
Galactalol is a sugar alcohol that is used as a sweetener and sugar substitute in food and beverages. It has about 60-70% of the sweetness of sucrose (table sugar) and is commonly used in sugar-free or "diet" products. It is also known for its low calorie content and low impact on blood sugar levels.
What is the difference between natural and induced transmutation?
Nuclear transmutation is the conversion of one chemical element or isotope into another. In other words, atoms of one element can be changed into atoms of other element by 'transmutation'. This occurs either through nuclear reactions (in which an outside particle reacts with a nucleus), or through radioactive decay (where no outside particle is needed).
Source:wikip
Chemical formula for hydrogenated palm kernel oil?
The chemical formula for hydrogenated palm kernel oil is C55H104O6.
You eat a big meal then an hour later your hungry again?
Eating a meal high in simple carbohydrates can cause a rapid spike and drop in blood sugar, leading to hunger shortly after. To stay fuller longer, try including protein, fiber, and healthy fats in your meals, and consider more balanced meal options to help stabilize blood sugar levels and keep you feeling satisfied.
Is a woman more fertile after child birth?
Yes, a woman can be more fertile after childbirth. This is because breastfeeding can suppress ovulation, but once breastfeeding decreases or stops, fertility can return quickly in some women. It's important to use contraception if you're not ready for another pregnancy.
Does shaving help facial hair grow?
Opinions that it helps:
- Shaving a lot does help. It's not an urban legnd. If you shave every morning your skin will develop a resistance increasing the thickness and amout of hair growth in the shaved area. It's definitely a credible alternative to applying products.
- Shaving does make hair more course.
- Well im 26 and have never really had a lot of facial hair exspecially under the burn to join it to my cheek. I have been constantly shaving twice a week for about 2 monhts now and my side burns are starting to join up and i had a bold patch under my chin wich has now filled in!!!!
- Severing the hair at the base of the shaft causes the hair growing in the follicle to compensate for the added weight which will have to be handled. It is a physiological response to an external stimulus.
- One way you can think of why hair feels coarser after shaving is, like when you break a toothpick in half, it is easy, then break one half in half, it is harder, and continually gets harder the smaller the piece. This is based on the principle of levers and leverage. The closer you are to the fulcrum, or in this case the break point, the more force needs to be applied to break or bend it. Short hair is harder to bend than long hair. As for shaving helping, it doesn't. You may grow more hair after shaving, but that would be pure coincidence considering you continually grow more hair over time. While you have been growing any current growth on your face, more hair folicals are beginning to grow and therefore when you shave, you put any hair you currently have, back to the same lengthe as the new hair coming in. Next time your hair grows out, it will include all of the shorter new hairs, meaning more facial hair. You don't need to be a doctor to understand that.
- The length of hair is based on a comparison between the rate of growth and the rate of decay. The hair is always growing but can seem to stop at a certain point - be it on the head or on the face - because the rate of decay at the ends keeps it from getting any longer. For the hair on my head I could never get it to grow beyond my shoulders until I started getting my hair cut regularly trimming the split ends. This caused the rate of growth to outpace the rate of decay. The same principles could be applied to the face. The older the ends of the hair the more likely it is to be split and damaged, the faster the rate of decay. So even just trimming facial hair will cause facial hair to appear to grow faster because the rate of decay has been reduced, not because the rate of growth has been increased. Sometimes the daily increase in hair growth rate cannot even be observed because the rate of decay is also increasing, which is why immediately after shaving the entire growth rate is observed to increase. This means shaving can help, but trimming can help even more. This is because it is only the ends that are subject to decay and cutting it all off just removes more hair than needed. This can be confirmed to be true by the mechanics of hair growth on the top of the head which is the same. - Elliander
Opinions that it doesn't help:
- Shaving will not do anything for hair growth at all one way or another. Hair growth is completely dependent on genetics and hormones. Shaving is just mechanically cutting existing hair at the surface of the skin. You cannot produce more hair by shaving. The reason why shaved hair seems coarser is simply because the hair is cut off bluntly and is newly growing out. Body and faciai hair growth doesn't stop at young adulthood--most men get hairier as they grow older. This is due to the continued exposure of the hair follicles to androgens (male hormones) which causes new beard and body hairs to develop from the hair follicles. It has nothing to do with shaving habits. If you are a young man and don't grow a very good beard, waiting is probably the best strategy -- you might grow in a better one as you get older, unless your lack of beard growth is caused by not producing enough androgens, in which case you should see a doctor about it. If you are of Asian or Native American ancestry, you might not grow much facial or body hair at all.
- Shaving more often does not increase facial hair growth, that is only an urban legend. It all depends on your genetics and/or testosterone level.
- Shaving does not help. People get this impression because when you shave, the �ends� or points of the hairs become blunt instead of soft. So it feels rougher, but the growth is the same. The hair might look darker but it is only because the length is uniform. One theory for the origin of the myth that shaving makes a beard grow faster is that humans perceive change by proportion. For example: going from "zero" to half an inch in a month is really noticeable; adding a half an inch to a beard that's already (say) 2 inches long is a much less noticeable change. In the first case, it's a "100%" proportional change, while in the second case, it's only a 25% change. So even if a beard is growing at a constant half an inch per month, it will *seem* to grow faster at the beginning and slow down as it gets longer, because the proportion of change is dropping. Some of the other readers are getting increased facial due to the onset of PUBERTY and not because they shave more frequently.
- Shaving cannot in any parallel universe help hair grow because hair is dead skin so therefore how does shaving force more skin cells die.
Rice is primarily a source of carbohydrates, but it also contains small amounts of vitamins such as niacin (vitamin B3) and thiamine (vitamin B1) in the outer layers of the grain. However, the processing of rice can remove some of these vitamins, which is why many rice products are often fortified with vitamins to increase their nutritional content.
What do polysaccharides taste of?
Polysaccharides are starch and cellulose. Starch is found in white rice, potatoes, white flour. Cellulose is the fibre/fiber found in plants eg celery.
Disaccharides are sugars eg cane sugar and monosaccharide is glucose.
