As a result, once we finished working, we had to move the beakers containing the sugar solution and potato pieces to a secluded and secure location to avoid disturbance. However, this movement caused some of the potato pieces to move. This led to confusion, as we had laid on the potato pieces in a formation so that we would remember the mass of each. The movement caused some pieces to be misplaced, resulting in confusion and improvisation. These errors could possibly make the experiment unreliable, and the conclusion
Another expected result was the presence of the red streak in the red agar for the third strain suggesting no biofilm was present. The second strain formed a dark red streak, however, which was unexpected as a dark streak indicating a biofilm was expected from the initial experiment. However, the dark red streak indicated some biofilm was present, although not as much as in the first
Yet, as we know, things like arsenic are natural as well, plentiful in the Earth’s crust. Additionally, there are apple seeds, which contain amygdalin, which can partially convert to cyanide in the body. Though the risk of being poisoned is very low, it’s another reason we avoid many pits and seeds. In order for many naturally toxic elements to become harmful, a reaction must occur. This reaction is what releases or increases the toxicity of what we ingest.
Well as you know now there is heaps of evidence that sugar is bad for you but it depends on the context. You might ask “if other sugars are so harmful why isn’t fruit sugars”? When eating fruit it has not only fiber it also has water and chewing resistance.this means it takes longer to digest, letting small amounts of fructose into your liver at a time. So will you turn to nature 's candy, fruit or stay with addictive sugar that destroys your body. Remember it’s your life, it 's your choice to give
This is because DNA is soluble in water not in ethanol. 4- Yes, the statement is analogous to our strawberry DNA extraction because even though there were not a lot of the strawberry DNA visible if it was just a very small sampling, there was more because we saw it more concentrated. When we look at a single or individual strand of DNA extraction, we will have to be very close to it for it to be visible but when multiple DNA extractions are all clumped together in one solution, they can possibly be seen from a very far distance. 5- It is important for scientists to be able to remove DNA from an organism because it gives scientist the advantage of researching and taking medical tests to learn more about mutations (just like cancer) and try to cure them. Also, it is important because, with the ability to extract DNA, scientists can identify or notice genetic disorders or other diseases by studying the
The purpose of this experiment was to see if altering the ingredients of a bath bomb affected the effervescent when placed in water. When a bath bomb is submerged in water the ingredients caused it to fizz, releasing a scent and changing the color of the water. This bath bomb experiment requires two recipes. The first recipe which was labelled as “normal”, contained less cornstarch than the other recipe. In addition to the “normal” recipe, the other recipe was labelled “extra” because it contains more cornstarch.
This would have made the results less accurate and made any errors change the final results even more. To make sure this doesn’t happen, there needs to be more trials to increase the precision of the results. Abstract The purpose of the lab was to determine what each of nice substances was based upon how they reacted with other chemicals as well as their pH levels. By using the given clues, the reaction with Litmus paper, and the precipitates formed by different mixtures, the chemicals were identified. Substance 1 was found to be BaCl , substance 2 was determined to be NaOH, and substance 3 was labeled as CuSO .
Jaimie Oliver in his Ted Talk claims chocolate milk is abominable for children, and it cause children to become obese and form bad habits in the future. While this tends to be the thought as true, Jaime makes an incomplete argument by not fully explaining the problems of chocolate milk and using a poor visual aid of sugar in a wheel barrow without describing the implications. Milk has key vitamins and nutrients needed in a diet, like calcium, but it also has natural sugars in it. “It has 14 grams of natural sugar or lactose; fat free chocolate milk has an extra six grams of sugar for a total of 20 grams, while fat-free strawberry milk has a total of 27 grams” (Hoag 1). A massive problem with the amount of sugar is that marketing companies who
2006). Mitochondria has DNA, (mtDNA) which are not protected by the histones as in the nuclear DNA (Croteau and Bohr 1997). In the nuclear DNA, the histones offers a shielding to protect the DNA from damaging the free radicals (Milligan, Aguilera and Ward 1993), it is also required to repair the double stranded DNA breaks (Celeste, et al. 2003). The mitochondrial DNA on the other had is lacking the histones, hence
On the off chance that this enzyme doesn't work, the microbes can't replicate or repair themselves and this executes them.Nalidixic acid is filtered out of the blood and pass into the urine by the kidneys. Large amounts of the prescription go into the urine, which implies nalidixic acid can be utilized to treat bacterial contaminations in the urinary tract. But as for my practical, we got clearing zone of S.aureus instead of E.coli. Since the inhibition supposed to go to E.coli but maybe due to some technical error like too high concentration of Nalidixic acid when plated on S.aureus compared to E.coli, that is why we got false positive