Question: How do various liquids (Tap water, creek water, miracle grow + water) affect the growth of a plant?…
This experiment was done to examine if the number of seeds used in a specific area would affect the growth process using two pots (Control, Experiment). Control pot had two Pinto beans, while the Experiment pot had four seeds. Both pots were placed in the same room with same amount of water supply and light. Then the results showed that the seeds in control pot were able to grow into a plant, unlike the experiment pot, this could be due to the insufficient space to grow in the experiment pot. Neglecting to water the pots during the spring break period could be an additional reason for the failure of growth.…
The hypothesis of this experiment was that the salinity of water would decrease plant growth due hypertonic solution and the results support the claim. Over the experiment time, plant 1 grew 0.5cm (2.38% increase) which was as expected as it didn’t have a high salinity. Plants 2, 3 and 4 all decreased in height, with plant 2 height decreasing by 1cm (5.26% decrease), plant 3 decreasing by 1.5cm(8.33% decrease) and plant 4 with a decreased height of 2cm(10% decrease). As you can see from the graph, plant 1 stayed in the same position while as the other plants decreased with plant 4 having the most significant decrease in height. Research supports the claim that salinity effects the plant growth significantly, this can be shown by the slow, stunted growth and how the leaves get darker in colour (Earthwiseharmony.com, 2015). The results were as expected; the only anomalies that could have affected the results would be the unknown nutrients in the soil and the water molecules in the air and pre-existing inside the soil and plants. Osmosis is basically vital for every organic organism, if a plant does not have enough water molecules it looks wilted. As you can see from figure 2-4, the plants are wilted. Plants looked wilted if they lack the proper amount of water and in turn loose their turgor (Osmosis in plants, 2015).…
Are they all true and that the results depend on the concentration? Does caffeine affect different species of plants differently? Other than their inconsistency, they didn’t explain much else other than the plant’s growth. What these studies didn’t explain, were other effects of the caffeine treatment.…
The first part of the experiment required the use of both solid-liquid and liquid-liquid separation in order to extract caffeine from the tea bags. The tea bad was first brewed and filtered. After brewing and filtering, the caffeine was extracted by using a separatory funnel. Through the separtory funnel, a layer of organic layer formed. This layer was the caffeine sample. In order to test the purity of the organic layer, the procedures for thin layer chromatography…
Two of the seeds were microwaved and one of them was not. Each plant received the same amount of water and lighting. The average height of plant cell #1 was 3.014, plant cell #2 was 0.857, and plant cell #3 was 1.7. Plant #1 had grown on day 11. Plant #2 sprouted on day 19. Plant #3 sprouted on day 12. Plant cell #1 grew the quickest and sprouted first. Microwave radiation did not speed up the process of plant growth based on these results.…
The negative control showed no release of CO2 gas. The positive controls (0.1 and 0.5) showed positive results that the caffeine did not inhibit, but increase the CO2 amount measured in the Durham tubes. The CO2 gas released peaked at the 1.5 mL concentration of caffeine, but dropped when the caffeine concentration increased to 2.0 mL. The greatest amount of caffeine concentration inhibited the cellular respiration in a Saccharomyces Cerevisiae cell.…
The results from this experiment show that caffeine can be extracted from a tea bag due to solubility properties of the natural substances found in tea. The two major substances that the caffeine was separated from are cellulose and tannins. Due to the insolubility of cellulose in water, it was easily extracted. Tannins are soluble in water but were neutralized with sodium carbonate to produce water-soluble salts. Caffeine is soluble in methylene chloride which allowed separation of tannins from caffeine because water-soluble salts are insoluble in methylene chloride. The experimental melting point observed in the results above show that caffeine was not completely separated from methylene chloride, tannins, or cellulose. The melting point…
Procedure: I will start off this experiment by purchasing three young (enough to determine growth) basil plants from a local department store such as Home Depot or Lowes. To set up the experiment,…
The second largest kingdom on our planet is plants. Plants require water, light, CO2. Light is the basis of all plant life, without light plants cannot photosynthesise, obtain energy and reproduce. Within the visible colour spectrum red has the longest wavelength (650nm,) green has a wavelength of 510nm and blue has a wavelength of 475nm. Millions of dollars is spent electrical costs for agricultural purposes. This investigation's purpose is to see which light colour is most…
My results did not support my hypothesis because the seeds that were with the regular coffee and the decaf coffee did not nearly grow as progressively as the seeds grown with water. Whereas I thought the seeds submerged in the coffee would grow more efficiently then the seeds with the water. Decaf grew at the slowest rate and after eight days only got to one centimeter, regular coffee grew to an also very low three centimeter, and water grew at a large 7.4 centimeters. These results were how they were because, water is very important for flax seeds growth. Water is what starts the germination process and is the key for the plant to break through its shell and grow. There is no real substitute for water with plants. So this is why the plants…
This project was to find the effect of caffeine on the Basil plants. We had seven pots, there was one contral, 2 pots had 400 mg of caffeine. Another 2 pots had 800 mg of caffeine, and the last two pots had 1600 mg of caffeine. The plants were watered every other day ⅓ of a cup of water. The plants were kept in a screened porch and got plenty of sunlight. There were five seeds in each pot, each seed was put ¼ an inch down in the soil. The plants soil was miracle grow soil, Everything was kept in the same conditions and the only difference was the amount of caffeine in each pot. The Caffeine was in tablets and we put them in the pots an inch down in the soil. The plants with caffeine were affected and did not grow. The hypothesis was right…
Caffeine is the most popular psychoactive drug in the world. Millions of people consume caffeine, in various forms, daily in order to feel more energized, but when consumed in amounts that are out of proportion, the effects can be counterproductive or dangerous.…
Experiment 3 highlights the separation of caffeine from tea leaves and using chromatography for testing its purity. Extraction is a method of separating the desired from the undesired substance in a mixture through the solubility properties of the substances. In the experimental extraction, Camellia sinensis was used and extracted with CH2Cl2, 6M NaOH, and NaS04 which yielded 0.0258g or 0.25% caffeine. Water boiling point is 100℃ while caffeine boiling point is 178℃. Extracted caffeine was tested to be pure through a comparison with a pure caffeine in the method…
However it is recommended that further research should be done as fertilizers not only speed up the growth but large amounts over time can slow it down thus provided an unusual result in this experiment. Improvements to be made can be different types of fertilizer – such as one with different concentrations of nitrogen, phosphorous and potassium. The amount of sunlight each container of duckweed receives may also play a role as too much will cause the water to heat resulting in the plants death. The hypothesis stated that it was expected that the duckweed growth would accelerate if more fertilizer to the liquid medium. However as seen in the results too much fertilizer will cause an initial bloom of duckweed but as the days passed the growth rate lessened slightly instead of it continuing to increase significantly. This could possibly mean that more duckweed would be allowed to absorb nutrients creating an oversupply thus stunning the growth slightly. Another option was that the oversupply was absorbed faster therefore less was available after a certain time period had passed. Therefore the results do not reflect the hypothesis and literature review very accurately as it states that as the growth rate declines in the experiment as more fertilizer is added whereas the information says it should increase at a faster pace when more fertilizer is added. (InfoBased…