In “An Indian Father’s Plea” by Robert G. Lake-Thom, Lake-Thom uses transitions to help connect his ideas and create a well written essay. In the twelfth paragraph the author discusses the knowledge that his son possessed before he began going to the school he is currently attending. Since Lake-Thom is listing the knowledge his son possessed before starting at that school he uses the transitional expression “and” frequently in this paragraph. Lake-Thom also repeatedly uses the transitional expression “but” when he says that while his son may not be able to do something that other non-Indian children his age can do such as writing their names he has knowledge of other things that those children don’t have. He also begins multiple sentences with
This experiment involved three treatments and a control. The goal of the experiment was to see how different levels of NaCl affect the rates of cellular respiration in day-old pinto bean seedlings. In this experiment the rate of cellular respiration was measured by the amount of CO2 in ppm per gram of substance produced by a given treatment group or the control over the course of ten minutes. CO2 levels were measured using a CO2 sensor. The sensor was given time to warm up then placed in a glass chamber with a sample from one of the treatment groups or a sample of control. CO2 levels in ppm were collected every four seconds for ten minutes by the sensor. The data was divided by the weight of the sample used to generate it, to give the respiration rate per gram of sample. The data was then graphed and the slope of the line of best fit for the data points was found. The slope of the line of best fit for each treatment was determined and represented
All organisms use food molecules, like glucose to produce ATP. The production of ATP occurs during cellular respiration. ATP provides the cells with energy that is necessary to produce oxygen. The seeds/plants are autotrophic organisms, which produce their food from the energy that the light provides them. To release the stored energy within the food molecules, the germinated seeds carry out respiration and the release of carbon dioxide. Oxygen was being consumed and carbon dioxide was being released because the water level in test tube “G” continued to
Because carbon dioxide is absorbed by the plant during photosynthesis less carbon dioxide present in the chamber is a sign that photosynthesis is working. The four lights used for this experiment range across the light spectrum on both sides in order to test a wider variety of wavelengths. All lights will be placed directly on the spinach leaf at the same distance so as not to give any spinach leaf a different light intensity, which could affect the data. This experiment will be able to show which light, ranging across the light spectrum, will allow the Spinach to perform photosynthesis more efficiently.
The rate of respiration of the germinating seeds can be represented by the rate of which CO2 is produced. The rate of respiration is expected to be affected by the change in temperature of the environment. As mentioned in the hypothesis, the change in the respiration rate is most likely to be due to the involvement of enzymes in the process.
The sodium bicarbonate provides carbon dioxide necessary for the photosynthesis process. In this experiment, the sodium bicarbonate increases the rate of photosynthesis.
The authors exposed seedlings to two different Carbon dioxide levels, soil temperature, and light conditions for one growing season. The two Carbon dioxide levels were 392 µ to a 784 µ , the two soil temperature was 17 and 22 degrees Celsius, and the two light conditions were 100% and 30% of the original 100%.
The CO2 gas produced can be used as an indicator for the rate of reaction as the amount of CO2 gas that is collected with in a fixed time is proportional to the rate of reaction. Therefore, the average rate of reaction can be calculated by measuring the amount of CO2 collected for a set period of time.
The null hypothesis, “There is no difference in the concentrations of NaHCO3 and the rate of photosynthetic activity.” is rejected. The alternative hypothesis is supported, that which the greater concentration of NaHCO3, the greater the rate of photosynthesis. Since it was found that the p-value was less than 0.05 in table 1 in all five treatments, this allows the null hypothesis to be rejected. This finding correlates with real life observations of faster rates of oxygen production during lab within the higher concentrations of
This is because photosynthesis is not taking place without sunlight. Without sunlight the plant can't power CO2 and Water to produce Glucose and Oxygen. However, organisms are always undergoing cellular respiration otherwise whatever the organism is it'll usually end up dead. So, tube A will be yellow since the snail exhales CO2. Tube B will be a lighter blue possible because the plant has most likely already undergone photosynthesis to grow before hand. Especially since the experiment states that it was a healthy plant, whereas a yellowish, drooping malnourished plant would not be able to provide sufficient data. So for the time being it'll take in CO2 until it stops functioning without the sun. Tube C would also be yellow because there is no longer equilibrium once the plant runs out of initial energy from it's previous lit environment(before being used for the experiment). Tube D will not change because there is nothing with get the blue
I agree with it because they help people out. Also since they help the Pea Pickers out they will probably help more people that need the help. I have learned that they got the best know for the imagine. I think Lange did a good idea on telling the Nipomo that the Pea Picker did have food.Also that Lange had help the Pea pickers by telling the Nipomo. Since Lange did that the Pea Pickers got twenty thousand pound of food. They did have food but they had to give up more of there things to gave that food. In paragraph number two it says "She had just sold the tires from her car to buy food". They did not have food because of the frozen harvest. They way Lange found out that they did not food was because when Lange went to north to San Franciso
The aim of this experiment was to investigate how the presence of light affects the rate of transpiration in plants.
Throughout the semester in AP Biology I’ve been able to cover several different topics. These include being able to identify biological processes that require energy, investigating and modeling ways organisms capture and store free energy for use in biological processes and investigating and explaining how organisms respond to changes in their environment. Over the semester I have been able to gain a full understanding and can demonstrate proficiency in each of these components of the curriculum. The work that I have completed involving these topics shows this.
The aim of this experiment is to investigate which seed has a higher rate of respiration and how different temperatures (room temperature, 400C, 600C) affects the rate of respiration of dried, fresh and germinating monocotyledonous (peas) and dicotyledonous (maize) seeds. This will be done using a respirometer which will measure the rate of oxygen usage. The change in volume recorded by the respirometer pipette will be an indication of this.
During daylight, as it was expected, in the Upper middle floodplain atmospheric CO2 concentration rates are lower, this because through photosynthesis the large amount of plants in the area absorb CO2 from the air. Nevertheless, in the deforested area, CO2 levels during daylight were noticeably higher than the upper middle floodplain, this because as there almost no plants and CO2 is no longer transformed through photosynthesis. Moving on, around 16:00 and 17:00 daylight fades away, and the respiration process becomes predominant again, though plants as metabolic product of respiration produce CO2. So the upper middle floodplain has higher amounts of CO2 concentration levels, as more plants are in the