Growing Pleurococcus
Aim
The aim of this experiment is to find out which side of a tree the
most Pleurococcus grows upon, and why this is so.
Prediction
I think the most Pleurococcus will grow on the North side of the tree.
I think this will happen because, the south side of the tree receives
the most sunlight. The heat from this sunlight would dry out the
Pleurococcus, which would cause it to dry out, and die. As
Pleurococcus is an algae, it photosynthesises. This means it needs
water as is shown in the photosynthesis equation below.
Sunlight
[IMAGE]Water + Carbon Dioxide Oxygen + Glucose
(aq) (g) (g) (s)
Sunlight
[IMAGE]6H20 + 6CO2 6O2 + C6H12O6
(aq) (g) (g) (s)
If it can not photosynthesise, it will not have enough energy to grow,
reproduce, respire, and repair, it will, therefore, die. The other
input into photosynthesis, is Carbon Dioxide, because Carbon Dioxide
is a gas, and diffuses, it will not affect our experiment. The other
thing that Pleurococcus needs to photosynthesise, is sunlight. Even in
the North, there is enough sunlight for it to photosynthesise. The
sunlight in the North is not enough to dry it out, because
Pleurococcus has heavy cell walls, which prevents excessive water
loss.
[IMAGE]
Basic Pleurococcus cell
Fair test
To ensure this is a fair test, I will be measuring 10 different trees,
instead of just one. This is because, if just one tree was measured,
the results from that tree could be an 'anomaly' (abnormal result,)
which would mean that I could not draw any fair conclusions. I will
then work out an average of my results, thus ensuring that I could
analyse them properly. Since in each experiment, I will be changing
the tree, I must not change any other factors, if possible. Obviously,
as it is outside, it will not be possible to ensure that I do not
change any factors. All the trees will be in different destinations,
Another difference lies in the position and shape of the tree itself. In Their Eyes, “the gold of the sun”, “t...
To improve my procedure, there are plenty of different ways to do so now that I have an increased experience with working with a large selection of trees. A major flaw with my research is by having to record the different types of trees in the zone, mainly height. Therefore, having to examine trees that vary greatly from each other. By having trees that represented the whole zone, instead of part of a zone, it would give more accurate information. To achieve even more accurate information, looking at the largest leaf for each tree would give a better
Bacteria play a large role in our health, the environment, and most aspects of life. They can be used in beneficial ways, such as decomposing wastes, enhancing fertilizer for crops, and breaking down of substances that our bodies cannot. However, many bacteria can also be very harmful by causing disease. Understanding how to identify bacteria has numerous applications and is incredibly important for anyone planning to enter the medical field or begin a career in research. Having the background knowledge of identifying an unknown bacteria may one day aid healthcare professionals diagnose their patient with a particular bacterial infection or help researchers determine various clinical, agricultural, and numerous other uses for bacteria.
To identify an unknown microorganism by performing a series of biochemical tests on a pure bacterial culture.
Legionella pneumophila GRAPH Introduction: Legionella pneumophila are gram-negative rods. They are very difficult to culture because of their complex nutrient requirements, such as cysteine, high concentrations of iron, and the use of activated charcoal agar. They survive as intracellular pathogens of either protozoa or human macrophages. They are most often found in stagnant water reservoirs like air conditioning cooling towers, whirlpool spas, humidifiers, faucets and shower heads, and are infectious when inhaled. L. pneumophila was first identified and named after the American Legion convention of 1976, held in Philadelphia, PA.
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This work uses diagonal and zigzag lines on the limbs and branches of the trees. These are good line types to use since they resemble nature. Curved lines are
Streptococcus pyogenes is a very common bacteria found in humans. It is very transmissible and can be caught through the air via coughing or sneezing. This form of Strep. illness is referred to as Streptococcal pharyngitis, also known as Strep. throat, which can complicate into Scarlet Fever. It is also possible to be infected through abrasions of the skin, which can result in cellulitis, impetigo, or even necrotizing fasciitis. Aside from human to human contact, these bacteria can also be found in unpasteurized milk. There is no vaccine for Streptococcal infections, though antibiotics such as penicillin still work very well against them.
In the last decade, the number of prescriptions for antibiotics has increases. Even though, antibiotics are helpful, an excess amount of antibiotics can be dangerous. Quite often antibiotics are wrongly prescribed to cure viruses when they are meant to target bacteria. Antibiotics are a type of medicine that is prone to kill microorganisms, or bacteria. By examining the PBS documentary Hunting the Nightmare Bacteria and the article “U.S. government taps GlaxoSmithKline for New Antibiotics” by Ben Hirschler as well as a few other articles can help depict the problem that is of doctors prescribing antibiotics wrongly or excessively, which can led to becoming harmful to the body.
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and get a drink of water and then drive the car out of the garage.