We concluded that ammonium nitrate inhibits C. richardii spore germination. Introduction Ferns can be found almost anywhere in the world, making them a major part of our ecosystem. There are over 10,000 species of ferns and they predominantly inhabit tropical areas (Brooker et. al. 2014).
After 2 days on the leaf where vaseline was applied on both sides there had been barely any water loss (according to all 3 tables) but there had been quite a great loss in water at the leaf where the bottom was covered which was different to my predictions (2 out of 3 tables show this and Ranjita’s table supports my hypothesis because their leaf with V on bottom only lost 26%) but this may just be these particular leaves that do not have that many stomata. To conclude from my results there are more stomata at the bottom but there is quite a significant number at the top too. However the Singapore Science Center states that “more stomata are usually found on bottom of leaves” which would mean that if my results had been a bit more accurate then the bottom side covered with vaseline would have prevented most of the water escaping which means the weight change should not have been great. We can now see that the results could easily be wrong or just a special case. If the leaves were to be kept longer for observation then the leaf with vaseline at the bottom would have died shortly too.
We let them soak for 20 minutes than we removed them from the test tubes. Next we measured their new weights and recorded them. They were; 10% NaCl decreased by 4%, 15% NaCl decreased by 8%, and 20% NaCl decreased by 12.5%.The results showed us the conclusion that the potatoes were hypertonic to the deionized water and were hypotonic to the sodium chloride solutions. Introduction: The objective of this experiment is to detect diffusion and osmosis in potato cells in 3 solutions. Diffusion is the spontaneous spread of molecules from an area of high concentration to an area of low concentration.
According to Labpaq “Nutrient medium is the standard growth medium used for culturing most microbes”. MRS culture medium contains polysorbate, acetate, magnesium, and manganese, which act as “special growth factors” for lactobacilli. (labpaq, unknown year) H. Discuss whether you saw growth in the tubes after 24 hours. For the S. epidermidis I did not see any growth (uninoculated) after 24hr. For the L. acidophilus I saw sediment after 24hr.
The U.S. Food and Drug Administration (FDA) approved Splenda as a non-nutritive sweetener in 1998 and as a general-purpose sweetener in 1999. It is now approved in more than 80 countries and is used worldwide in over 4000 commercial products such as no-sugar added fruit, diet drinks, and reduced juices. Splenda is a mixture of dextrose, malt dextrin, and sucralose. Ten grams of Splenda contains 9.00 g of carbohydrates. This consists of 8.03 g of sugar(dextrose) and 0.96 grams of starch (malt dextrin) 10 grams of Splenda has 33 Calories compared to 39 Calories for an equal amount of sugar.
Palmer goes on to writes “The cotton plant needs about 50 percent more water per season than hemp, which can grow with little irrigation…cotton uses more than four times as much water as hemp” (Palmer). Along with what Brian Palmer wrote, Kristoffer James right in his article “Why to Choose Hemp Over Cotton” writes “Cotton consumes 25% of the world’s insecticides and 10% of the world’s pesticides… Most hemp is grown without pesticides/insecticides” (James). Kristoffer James goes on to write “It takes about 1,400 gallons of water to produce just one pound of cotton… Hemp requires only half that” (James). Both Palmer and James show that
It is expected that the the length of the radical would decrease as the salt solution increases. Hypothesis: I think that when the NaCl solution concentration increases the length of the radical would decrease. The fact is that as the salt solution concentration increases it weakens the plant ability to absorb water/ nutrients in order to grow. Variables: Independent: Salt concentration (0.0%, 0.2%, 0.4%, 0.6% and 0.8%) Dependent: Length of radical (cm) Controlled variables: Controlled? Amount of seeds (mung beans) per petri dish (8 beans) How?
Then they are sun dried until the moisture content is below 7%. This normally takes another three days. After cleaning, the beans are weighed, selected and blended before roasting at 250 degrees Fahrenheit for two hours. Then shells are removed leaving the "nib." Nibs are crushed to create a chocolate "mass."
Biodegradation of plastics Enzymes from fungi isolates adhere to the polyethylene substrate and then catalyze a hydrolic cleavage. Intracellular and extracellular depolymerizes in fungi degrade the polyethylene by cleaving the ester bond. Biodegradation Analysis The polymer degradation will be analyzed by measuring the weight loss, change in pH, CO2 evolution test, SEM analysis and FTIR analysis. a) Weight Reduction Dry weight of the residual polyethylene will be determined by dipping the fungi-treated films with aqueous sodium dodecyl sulphate solution for 4 hours and with distilled water. The washed polymer will be placed at a filter paper overnight at 60 degrees.
It is brought to the husker, and then the cutter, and then the kernels are cleansed and inspected by hand. They are canned and then put into the cooker for about 16 minutes, then sent off to be sold. 3) The parts of the corn that are not used for human consumption are sold as animal feed. 4) 364 million pounds of field corn is grown is the US. Of the eighty million acres of corn in the United States only about 380,000 acres of it is sweet corn.