My hypothesis was correct, orange juice registered the most electrolytes in accordance with the conductance measured on the multimeter. The multimeter measured the concentration of electrolytes by measuring conductance, which is proportional to the electrolyte concentration. The conductance of the solution depends on the concentration of electrolytes as cited in David Whyte’s experiment. I chose this topic because I have always been skeptical about the validity of the quantity of electrolytes said to be in sports drinks. Sports drinks have been recommended as a way to replace electrolytes lost during exercising.
These proved that chocolate has no effect on facial breakouts. In essence, it is not chocolate, per se, that hurts your complexion but the sugars and fat that it often contains that actually do the damage. From this, scientists were led to discover vitamins and minerals that could probably help. The Islander Diet Did it ever cross your mind why those who live in the Pacific Islands do not suffer from acne even during their puberty? To answer this wonderment, try comparing the Western diet with the Pacific Islands diet – you are bound to find significant differences.
It was also to see how you can identify which biomolecules are present in a substance or a food. I think we achieved the purpose of this experiment and fulfilled what it intended us to do. As we come to the conclusion, I have learned that my hypothesis is indeed correct and there was glucose,starch, and proteins present in the unknown substance. My lab group personally had no idea what the substance was before or after the experiment took place, because glucose, starch, and proteins are present in many other things so learning that these molecules were present didn’t really help us find out what the substance
Kinetic theory states that molecules are always in constant motion. Kinetic energy and molecule velocity increases as temperature increases. Reactions require collisions between reactant molecules or atoms. In chemical reactions, the reactants change into products when molecule collide with enough energy to break old bonds to make new ones. Collisions increase or become more violent between molecules at higher temperatures or decrease as the temperature is lowered.
The documentary shows us the food industry has tricked consumers in thinking low fat and reduced fat foods are healthier for us. Through interviews with doctors the film explains when you remove the fat from food the taste also goes with it, and to keep flavor in the food companies add sugar. Fed Up shows us the effect sugar has the body by using clever comparisons. For example, 160 calories of almonds and 160 calories of a soft drink is compared in the film. Although they are the same number of calories our body processes the food differently, because in the soft drink there is no other nutritional value with the food.
Thus, a warming of the surface increases atmospheric humidity and because water vapor itself is a greenhouse gas, this leads to additional warming. To put it another way, as temperature rises, evaporation increases and more water vapor accumulates in the atmosphere. Water vapor as a green house gas absorbs more heat, further warming the air and causing more evaporation. Water vapor is a positive feedback because it amplifies the initial warming. The effects of the water vapor feedback are considered to be fast feedbacks because they occur rapidly in response to a change in surface temperature and therefore its impact on energy in and energy out are nearly instantaneous.
But with the help of Ben Goldacre and his book “Bad Science” I fee as though I am no able to spot bad science from a mile away. Drawing on such theories like the effect of placebo, sugar pills, and the dangers of miss informed ‘scientists’ claiming to have come up with new sciences behind certain foods (cough, cough. Dr. McKeith). In summary, the book has provided me with a breath of fresh air on controversial non scientific theories that have been built up through time and sold to us by ‘scientists who do not understand the aspects of basic biology. I would like to thank my professor for making us read this book and more importantly Ben Goldacre for shedding the light on Quacks, Hacks, and Big Pharma
I concluded that as pH increases, the enzyme’s rate of reaction increases as well. For example, this is illustrated in the data by the fact that the liver at pH 9 released over 1000 more mL of oxygen than the liver at pH level 1. This also aligns with my expected results, because I predicted that pH would cause rate of reaction to increase. The rate of reaction increases along a curve, suggesting rate of reaction increases faster than pH increases. Also, the data shows that there is a very large difference between the amounts of oxygen released by the varying pHs, even though the difference in pH is not so great.
Hypertrophy refers to an increase in the size of the skeletal muscle. Furthermore, there are two different categories of hypertrophy; Transient and Chronic. Transient hypertrophy is a more immediate effect following a single bout of exercise. It is caused by fluid accumulation in the muscle space. However, chronic hypertrophy refers to more long-term changes in the muscle.
Red Blood Cells Red blood cells will change shape in response to the evolving environment. For instance when distilled water is added to red blood cells, the red blood cells seem to expand. Why does this natural phenomenon cause red blood cells to appear considerably bigger after being exposed to distilled water? We tested two theories of why this happens. Theorem one is that molecules such as protein and polysaccharides are more concentrated inside the cell than outside the cell when the cell is in distilled water.
Abstract This experiment showed that temperature, concentration and pH all affect the rate of enzyme reaction differently. Enzymes are very important in organisms and therefore understanding how and why they work the way they do in specific conditions is crucial. The results showed that an increase in temperature would also increase the reaction rate, until a temperature that was too high, where the enzymes began to denature and therefore the rate of reaction was slowed down. As concentration was increased, the reaction rate continued to increase. The higher the concentration, the more rapid increase in reaction rate occurred.
In the same manor as the temperature decreases it slows down the enzymes not allowing them to break down the solution in a timely matter. The amount of pH in the solution didn’t match the hypothesis for this experiment. The fastest absorption rate of the enzymes was at the pH level 7 which was predicted to be the slowest rate. It absorbed the most at the pH level because it was at a neutral, not being to acidic which would slow down the enzyme break down. From this experiment it shows that the highest concentration of enzymes is what gives the fastest rate of enzyme absorption.