Does radiation affect the way a plant grows? If plant seeds are exposed to microwave radiation, then the growing process will increase. The procedures to complete this experiment are: gather all the materials needed to prepare to plant, fertilize, water and conversely, test the plant. Locate a nice spot to test the plant. Every day record to see if there is any plant growth. The independent variable is the amount of microwave radiation seeds receive. The dependent variable is the growth of the plant seeds. The control group was the non-microwaved seeds (cell #1). The experimental group is the microwaved seeds (cell #2 - 15 seconds, cell #3 - 30 seconds). The constant variables were, the same amount of water ( 30 ml), the same soil ( Miracle …show more content…
The amount of radiation did not change the way the plant grew, cell #1 had no extra microwave radiation but grew taller than plant cell #2, which had extra microwave radiation. The dependent variable was the growth of the plant seeds. The growth of the plant seeds were similar as all the three plant cells grew 1-2 centimeters taller than each other. It is possible that the reason all three cells were around the same height after 35 days may be because 30 seconds of extra microwave radiation may not be enough to give the plant an advantage to grow much taller than the rest of the two cells. The seeds were not very exposed to the microwave radiation even without microwave radiation, plant cell #1 grew to a very good height.
The results were not as expected. The 0.3 and 300 gigahertz could have approximately changed the length of the plant with that many gigahertz.The hypothesis was that the more microwave radiation there was, the bigger advantage there was for the seeds that were given extra radiation. Maybe the reason the results were unexpected may be because of the times that the plants have fallen and the seeds have come out, that could be the reason why the results are messed
This meant that this cuvette (tested under light) should display a higher decrease in DCIP due to the reduction in absorbance (dependent variable) opposed to the other cell fractions tested depending on a sixteen minute period (independent variable). The overall goal was to provide proof, through data, that the cell fractions put under the light during the sixteen minute period would indicate a higher set of chloroplast activity versus the ones put in the
Investigating the Effect of Light Intensity on the Size of a Plantain Leaf Title: To investigate the effect of light intensity on the size of a plantain leaf. Hypothesis: I predict that the size of the plantain leaves would increase as the light intensity decreases. Therefore, plantain leaves found in the shade will have larger surface areas than leaves found in an open area. Theory: Sunlight is an essential factor need to complete the process of photosynthesis.
The Intergovernmental Panel on Climate Control (IPCC) was established in 1988, reported in 2007 in “very high confidence” that since 1750 human activity has played a major part in overloading the atmosphere with carbon dioxide. Whether it’s through cellular respiration or the burning of fossil fuels is debatable. Cellular respiration is a process of creating energy and it takes place in all living things, even in plants. Carbon dioxide, oxygen, light and water are important factors in this process. Keeping a balance level of carbon dioxide is crucial to the earth’s atmosphere, because if it gets too high, it increases the average temperature on earth, which is unfortunately what we are dealing with and call “global warming”. I believe cellular respiration does not affect global warming as greatly as industrial fossil fuels do.
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
the effect light has on the growth of pea plants. It will take place in an environment with controlled light, with equal amounts of plants being grown in the light and in the dark. All elements of the experiment other than light will be kept the same, such as amount of seeds in each pot, amount of soil in each pot and amount of water given to each plant each day. This will ensure a fair experiment. Prediction: I predict that in general, the plants grown in the light will grow better than those grown in the dark.
Two members of the group were instructed to visit the laboratory each day of the experiment to water and measure the plants (Handout 1). The measurements that were preformed were to be precise and accurate by the group by organizing a standardized way to measure the plants. The plants were measured from the level of the soil, which was flat throughout all the cups, to the tip of the apical meristems. The leaves were not considered. The watering of the plants took place nearly everyday, except for the times the lab was closed. Respective of cup label, the appropriate drop of solution was added to the plant, at the very tip of the apical meristems.
The question that was proposed for investigation was: Can the theoretical, actual, and percent yields be determined accurately (Lab Guide pg. 83)?
Radiation is the emission of electromagnetic energy that is given off in the form of high speed particles that cause ionization. During ionization radiation hits and knocks electrons from an atom creating charged ions. Due to the electron being stripped away from the atom this break the chemical bond. Living tissue within the human body is damaged and attempts to repair it but sometimes the damage is beyond repair.
What is Radiation? Radiation is a A form of energy carried by waves or a stream of particles. Radiation is a fragment that is capable of ionizing atoms or molecules isolating electrons from them due to its sufficiently possessed energy when it is passed through them. Radiations include alpha, beta and gamma rays. They can cause severe damage when absorbed by living tissue, and are therefore a health hazard they can effect the repairing ability of living cells. Ionizing radiation consists of subatomic particles or electromagnetic waves that are energetic enough to detach
The purpose of the lab was to show the effect of temperature on the rate of
Every student in a lab section planted eight seeds, two in each cell in a quad, to make sure that we had at least one plant for each week for 4 weeks. After planting the seeds we put the plants on a water mat tray to make
During the following lab, an aquatic plant was covered with a funnel and was placed underwater inside a beaker, with a graduated cylinder (submerged in water) was placed over the neck of the funnel. This lab tested out which source of light which is the independent variable would allow the aquatic plant to produce the most bubbles (dependent variable) and photosynthesize the fastest. This is clearly displayed because when photosynthesis is produced underwater it appears in the form of bubbles inside the water. These bubbles will travel up through the funnel and displace the water in the graduated cylinder. The dependent variable was tested by placing the four, 5cm aquatic plants in the beakers directly in front of the sources of light and observing how many bubbles were produced within the period of 10 minutes and how much water was displaced by the oxygen bubbles. The beaker in front of the light source with the most bubbles produced and with the most displaced water performed photosynthesis faster than all the other light sources. The sources of light used for this lab were sunlight, florescent, red, and yellow lamp lights, and
In figure 2, the class mean calculated was 147.8kJ. The difference between the two measurements is 2,122.2kJ. This shows how low the accuracy for this experiment was. The macadamia nuts had a true energy value of 3040kJ per 100g. Looking back at figure 2, the class mean calculated was 224.4kJ which leaves a difference of 2,815.6kJ. Once again, a low accuracy. Lastly, the popcorn had a true energy value of 1910kJ. The class mean equalled to 144.1kJ. The difference between the class mean and the true value is 1,765.9kJ which shows this experiment being low in
Food irradiation deals with the process of ionizing radiation with the help of ionizing machines, in order to remove any bacteria, insects, microorganisms, as well as to provide long term solutions for foods, vegetables, and fruits. According to a scientific principle ‘food irradiation’ works through the ionizing machines which are easy to make and there is no need for land or farm to grow foods. Irradiating the foods also change the nutritional value and the taste of the food. The scientific principles involved in food irradiation are as follow: - “Radiation inactivation of microorganisms, disinfestations of stored grains, pulses, dried fruits, and nuts. - Irradiation as a quarantine treatment. - Irradiation of meat and poultry, fish and shellfish, fruits and vegetables, and tuber and bulb crops. - Radiation decontamination of spices, herbs, condiments, and other dried food ingredients. - Process control and dosimetry in food irradiation” (Molins, 2008). First food irradiation is the process of exposing the food to a source of energy that has the ability of removing the electrons from individual atoms in the targeted material (ionizing radiation). Second according to scientific rules the ionizing radiation is emitted by a radioactive substance or generated by high-energy accelerators including X-ray converters. Finally processed foods contain trans-fat, hydrogenated oils and saturated fats, which are worse than animal-derived saturated fats. It is believed that many people are against food irradiation.