what effect did cold have? room temperature?in catalase. tell me faster if you can pls?
375290
Generally chemical reactions slow down if the temperature goes down . . . . regardless of whether a catalyst is used or not. For enzymes (biological catalysts), the rule of thumb within normal (around room temperature) temperatures is that reactions slow down by half for every 10F reduction in temperature. It is important to note that this is only a rule of thumb and does not apply to all enzymes.
941373
Within limits,as temperature increases,so does the amount of O2 released from the hemoglobin.Heat is a byproduct of the metabolic reations of all cells and the heat released by contracting muscle fibers tends to raise body temperature.Metabolically active cells require more O2 and liberate more acids and heat.The acids and heat, in turn, promote release of O2 from oxyhemoglobin(oxy binded with hemoglobin in blood).\n\nSo, increased in temperature caused the rate of respiration to increase too.Because O2 tends to be released from the hemoglobin compared to when the weather is cold.This explain why during fever,a person will breath faster than normal person.\nIn contrast,during hypothermia(lowered body temperature) cellular metabolism slows and the need for O2 is reduced,and more O2 remains bound to hemoglobin.\n\nPlease check my grammar too.Im sux with my grammar coz English is my 3rd language.So, please check it.Hope this helps ya!
863240
Since you had recently suffered from flu, and having sat around during the party in the night where you could have lost your body’s core temperature.  Your body had reacted to it by curtailing the circulation of the skin (goose pimples) and other non essential parts of the body so conserve heat of your body.  But once you were back in your bed, the outside temperature being returned back to normal, blood would have started flowing out to the skin, which was so far curtailed by your body mechanism.  This caused the body losing heat and this started the shivering and this way the muscular activity generated had built up your core body temperature while diverting your blood to the splanchnic pool (the blood pool which supplies to the viscera of the body).  \n\nNow since your blood was pooled in your visceral area and therefore could not reach the brain in sufficient quantities while you were straining to void your bladder, it caused you a spell of dizziness/fainting.  MICTURATION SYNCOPES are known to occur, but in the old and the frail, after prolonged illnesses, or in those with obstruction like BPH (Benign Prostate Hypertrophy) where one has to strain more to pass out urine through the obstructed tract.   \n\nDo not be unduly worried.  Start taking plenty of warm fluids, soups etc.  Keep your body well protected from cold and do not jump out of the bed, get out slowly and do not hurry.  Do not strain too much while standing to void your bladder.  Good luck.
35706
After you eat, a large portion of your blood goes to your stomach to aid in digestion. This can reduce the volume of blood going to your extremities and skin, making you feel colder.\n\nNot everyone gets cold after eating - it depends on the individual's circulatory system.
825248
Basically it is\n\n2 H2O2 -> O2 +2 H2O,\n\nwith catalase written above the reaction arrow.\n\nA more detailed formula would show intermediary reactions of H2O2 with catalase, and then how catalase returns to the original state giving up O2 and H2O.
335460
. Yes -- here is a general explanation for all you non-belivers.\n\nHot water can in fact freeze faster than cold water for a wide range of experimental conditions.  This phenomenon is extremely counter- intuitive, and surprising even to most scientists, but it is in fact real.  It has been seen and studied in numerous experiments.  While this phenomenon has been known for centuries, and was described by Aristotle, Bacon, and Descartes [1-3], it was not introduced to the modern scientific community until 1969, by a Tanzanian high school student named Mpemba.  Both the early scientific history of this effect, and the story of Mpemba's rediscovery of it, are interesting in their own right -- Mpemba's story in particular provides a dramatic parable against making snap judgements about what is impossible.  This is described separately below.\n\nThe phenomenon that hot water may freeze faster than cold is often called the Mpemba effect.  Because, no doubt, most readers are extremely skeptical at this point, we should begin by stating precisely what we mean by the Mpemba effect.  We start with two containers of water, which are identical in shape, and which hold identical amounts of water.  The only difference between the two is that the water in one is at a higher (uniform) temperature than the water in the other.  Now we cool both containers, using the exact same cooling process for each container.  Under some conditions the initially warmer water will freeze first.  If this occurs, we have seen the Mpemba effect.  Of course, the initially warmer water will not freeze before the initially cooler water for all initial conditions.  If the hot water starts at 99.9° C, and the cold water at 0.01° C, then clearly under those circumstances, the initially cooler water will freeze first.  However, under some conditions the initially warmer water will freeze first -- if that happens, you have seen the Mpemba effect.  But you will not see the Mpemba effect for just any initial temperatures, container shapes, or cooling conditions.\n\nThis seems impossible, right? Many sharp readers may have already come up with a common proof that the Mpemba effect is impossible.  The proof usually goes something like this.  Say that the initially cooler water starts at 30° C and takes 10 minutes to freeze, while the initially warmer water starts out at 70° C.  Now the initially warmer water has to spend some time cooling to get to get down to 30° C, and after that, it's going to take 10 more minutes to freeze.  So since the initially warmer water has to do everything that the initially cooler water has to do, plus a little more, it will take at least a little longer, right? What can be wrong with this proof?\n\nWhat's wrong with this proof is that it implicitly assumes that the water is characterized solely by a single number -- the average temperature.  But if other factors besides the average temperature are important, then when the initially warmer water has cooled to an average temperature of 30° C, it may look very different than the initially cooler water (at a uniform 30° C) did at the start.  Why? Because the water may have changed when it cooled down from a uniform 70° C to an average 30° C.  It could have less mass, less dissolved gas, or convection currents producing a non-uniform temperature distribution.  Or it could have changed the environment around the container in the refrigerator.  All four of these changes are conceivably important, and each will be considered separately below.  So the impossibility proof given above doesn't work.  And in fact the Mpemba effect has been observed in a number of controlled experiments [5,7-14]\n\nIt is still not known exactly why this happens.  A number of possible explanations for the effect have been proposed, but so far the experiments do not show clearly which, if any, of the proposed mechanisms is the most important one.  While you will often hear confident claims that X
709761
you really need to go to the ER asap. the high temperature can cause you serious problems if you dont get it down. since it went away and then came back it shows that it is still in your system,you need antibotics seriously. you dont wanna harm your body.
978438
Kidney and or liver shutdown.  My neighbors cat had the same symptoms and the cat just passed last weekend.  Maybe poisoned from a plant or pesticide.  It's hard to know exactly what caused the death.  I am sorry for your loss.
981100
no, it wouldn't be easier.  Certain compounds have lower melting points than others.  Lipids for example, if you cool your body down too much become very rigid.  The resulting body temp is actually in a very important lipid range that deals with lipid and membrane fluidity.  Evolution to this is probably the result of species out competing those with lower internal temps.  Besides, our bodies naturally produce a very high amount of heat non-related to cell temperature regulation as a result of moving and living anyways.
726294
The Mpemba Effect: When Hot Water Freezes before Cold\nSee the site attached
902443
You know that an enzyme in the liver, called catalase, breaks down H2O2 into H2O and O2? :) \n\nAll enzymes work at an optimal temperature and pH, and if the pH is too high or low, the enzyme is denatured (i.e. the shape is changed so that it cannot work on the substrate anymore). Thus, for very high and low pH, enzymes (acting as biological catalysts) denature and the reaction rate goes down.\n\n(There are exceptions to this, such as pepsin which works at an optimal pH of 1.)\n\nBut anyway, since catalase is not really one of the exceptions, the optimal pH for it is about pH7-pH8. Thus, the highest rate of reation would be the one in water. The other 2 would be kind of low.
758705
Contrary to what is believed, alcohol may make you feel warmer but it actually lowers the temperature of the body. When alcohol enters the blood, it causes the blood vessels to widen.  More blood flows to the skin's surface.  The drinker's body temperature drops as the increased blood flow to the surface allows body heat to escape.  People who drink alcohol in cold weather to get warm actually accomplish the opposite.\n\nThough carbohydrates are known to be the best source of heat and energy, all what you eat are actually contributing in producing your body heat. So eat a well balanced diet and wear sufficient clothing to combat coldness while you go out. Instead of bringing a flask of scotch on route why not bring a flask of hot drinks instead?☺
819380
drinking water after a meal can lead to heart attack? what??\n\nfrom what i know..myocardial infarction is caused mainly by smoking, high LDL, obesity, high blood pressure..\n\nbut never from drinking cold water..especially after a meal\n\nand it does not solidify the oily things you eat.  I don't believe cold or warm water solidifies oil because oil is hydrophobic to either warm or cold water/tea.  They wouldn't even mix..\n\neven having a beer after a meal won't do anything but intoxicate you
654039
its actually temperarure, pressure and polarity.\n\ntemperature increases then solubility increases\n\npressure increases then solubility decreases.\n\nand by the theory 'like dissolves like' polar is dissolved in polar solvents and vice versa.\n\n** though at room temperature, temp factor shall not have effect as temp remains constant
441522
Cold (Frozen/Refrigerated)\nSalted\nPickled\nDried\nFreeze Dried\nSmoked\nOiled\nCanned\n\nand of course, eaten and stored as fat!
26877
A few years ago, a new natural product hit the market. It's called AIRBORNE and was developed by a second-grade teacher. It is amazing. It is best to take it when you first notice symptoms.  I have used it several times with excellent results. I have also given it to my family members and they too have had their "cold time" greatly reduced.\n\nhttp://www.airbornehealth.com/main.html
201719
(m)\n\nHot water does not freeze - cold water does.\n\nHot water cools faster than cold water because they both follow approximately the rate equation delta T = -k*dT/dt.\n\nAfter washing the stained clothes in both hot and cold water, we determined that cold water removed most of the stains more efficiently.  Cold water removed all of the stains that hot water did not, with the exception of grape juice and mustard.  Neither hot nor cold water removed oil or grass stains efficiently.  It different detergents and/or stain removal substances, such as Shout, were applied to the grass and oil stains, they would more than likely be able to be removed.  Since oil needs heat to dissolve, it would probably be effectively removed with the proper stain removers in hot water.  We decided that not just hot or cold water can specifically be used to remove all types of stains all the time.  Each stain must be treated accordingly using the right detergent and the right water temperature.  \n\n \n\nAlthough hot water is needed to remove some stains, it also tends to fade the color of materials.  If there are no stains in clothes, it is more efficient to use cold water because you are saving energy by not needing water to be heated.  If clothes need to be washed in warm or hot water, you can save energy but washing big loads of laundry at once and rinsing them on a different, cooler cycle.    \n\n\nCold water pressure washers are most suitable for car, deck, grill, patio, sidewalk, house, bus, and truck power cleaning. Also, if you have a car washing or an airplane washing business cold water power washers are the best fitting machines for it.\n\nOn the other hand, hot water pressure washers are excellent for oil, grease, and fuel spills, and for sanitization. Hot water pressure washers are also the best candidates for places such as garages, industrial plants, agriculture machineries, service areas, food processing plants, and airport environments.\n\nCold (40 - 50 degrees F) water is absorbed more quickly from the stomach. Also, if cold water is drank during physical exercise has the dual effect of also cooling the internal body temperature along with sweat produced by exercise. Since sweat is your body’s way of cooling itself, leave sweat on your skin and you should feel cooler.