In Tube A with the water snail, cellular respiration is being undergone. Tube B, is a aquatic plant so, for this tube, photosynthesis is most likely happening. Tube C has both the water snail, and the aquatic plant which means there is going to be an equilibrium of both processes being the photosynthesis, and cellular respiration. Tube D is the control. BTB or bromthymol blue is a solution used to detect changes in pH. The detection of pH is associated with the amount of CO2 present, meaning that the pH changes with the amount of CO2. The color spectrum ranges from blue to yellow, which means green is equilibrium. Photosynthesis takes in carbon dioxide which makes the solution less acidic and the color blue. Cellular respiration does the opposite by releasing CO2 from the broken down glucose. Therefore, the BTB solution turns from blue to yellow. So, in tube A the snail is going through cellular respiration releasing CO2 and making the …show more content…
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
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.
Over these 15 consecutive days our criminal justice class has watched the decomposition of 9 still born piglets, which were laid out in a specific way, with specific wounds. Piglet 10 was put into a box at the beginning of the experiment, and was not revealed until the end of it. Each piglet was in its own condition. Piglet 0 was naked in a box, Piglet 1 was naked on the grass, piglet 2 had 1st, 2nd, and 3rd degree burn all over its body, it too was laying on the grass, piglet 3 was stabbed behind right shoulder, also lying on the grass, piglet 4 had a .380 bullet would on its side, it was laying on the grass, piglet 5 was clothed on the grass, piglet 6 was naked piglet on the black top, piglet 7 was clothed on the black top, piglet 8 was suspended in the air with clothes on, and piglet 9 was suspended in the air naked. At the beginning of the experiment we hypothesized on theories we now know the answer too.
Respiration is the process by which organisms consume oxygen to create energy. By measuring oxygen consumption, the metabolic rate can be determined because of its correlation to respiration. In this experiment, the rate of oxygen consumption is measured in water using the poikilotherm goldfish. Unlike the body temperature
My results were fairly reliable, and are very accurate. Beans grow best with fences, poles etc. to climb up. They also prefer full sun. Most of the beans did sprout, but the ones that did probably did not get full sun due to their position. Another factor to explain my results, is the water amount.
Photosynthesis/Scientific Method Worksheet 1. State and explain your pre-experience hypothesis: We were supposed to place (Elodea) in two tubes, which one should closer to a light source and the other with no light on it. The experience consisted in observe and count the amount of bubbles coming out from the plant in both tubes.
The purpose of this lab was to measure the amount of CO2 gas given off by germinated peas under certain conditions of light. We conjectured that the more amount of light the peas are exposed to, the higher the respiration rate they will have. Our data supported this because it showed that the germinated peas that were exposed to light 24 hours before the experiment had a steeper slope (as seen in table 1), therefore having a greater respiration rate. The peas that were not exposed to any light 24 hours before the experiment had a reduced rate because of its lack of exposure to light. Both pea’s respiration rates showed that the more light the peas were exposed to, the greater respiration rate they would have (Figure 1).
Lettuce: (10-5)/25 = 0.2 Poinsettia: (0-0)/25 = 0 What was the role of the sodium bicarbonate in this experiment? The sodium bicarbonate provides carbon dioxide necessary for the photosynthesis process.
DIY - What Is Life? How can you determine whether something is alive, dead, or non-living? Whenever we speak of life, we must think in terms of cells.
Cyanobacteria are able to absorb light at both short and long wavelengths whereas Chlorobi can only absorb light at long wavelengths. In the reaction center of cyanobacteria, oxygen is produced whereas the reaction center of Chlorobi does not generate oxygen. How do Green Bacteria overcome the low light conditions at which they are often found? Green bacteria have large chlorosomes which are composed of bacteriochlorophyll and carotenoids. These pigments are responsible for absorbing light at long wavelengths.
The control to this experiment would be a open container with the same amount of Daphnia and observed for the same amount of time. There would also be a container with certain levels of oxygen concentration that would be observed. The independent variable of this experiment is the oxygen concentration in which the Daphnia will be placed in and the dependent variable of the experiment is the hemoglobin produced in the Daphnia. It takes an estimated two to three days for daphnia in hypoxic conditions to appear red, so the colors of the organisms would be observed for multiple days in order to see the whole process of hemoglobin synthesis in Daphnia. The effect of oxygen concentration on the hemoglobin produced in Daphnia will be tested by placing saran wrap over the petri dish in which the Daphnia live in with varying amounts of openings and measuring the amount of Daphnia that appear red due to the hemoglobin produced in it’s
Aim To observe the effect of light intensity on the rate of photosynthesis. Hypothesis Light intensity is directly proportional to the rate of photosynthesis. When the light isn’t intense, not many oxygen bubbles will be produced and thus observed. This indicates that the plant will not have enough derived energy from the sun to activate photosynthesis. Whereas, when the light intensity is great, the rate of photosynthesis will be high.
Cornu aspersum, commonly known as the garden snail (Helix aspersa) is a terrestrial pulmonate gastropod mollusk in the Helicidae family. These snails are native to the Mediterranean area and Western Europe, but they now have been spread everywhere around the world, except Antarctica. They also happen to reside in various parts of the world, where they are an agricultural pest. The garden snails have a muscular ventral foot that makes wave-shaped motions made by muscular contraction to make the snail glide.
Then, tests are performed to determine if the products of aerobic and anaerobic respiration are present in the flasks. The citric acid cycle consists of a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the form of ATP (Biology). The tests detect the presence of carbon dioxide and ethanol. Carbon dioxide should be present irrespective of the type of respiration taking place, but ethanol is present only if fermentation has occurred. Another factor that can indicate whether fermentation occurred or cellular respiration occurred is the amount of glucose utilized during incubation.
Background Information: In this experiment I will be investigating the impact of light intensity on the rate of water uptake, due to transpiration, by attaching a shoot from a leafy plant in the capillary tube of a potometer, and then measuring how long it takes for a bubble to move a set distance. The faster the bubble moves, the greater the rate of transpiration. I will be placing one plant in an environment where it is exposed to high-light intensities, and another plant in an environment where it is exposed to low-light intensities. Transpiration is the process of the transport of water and nutrients up the the plant from the roots to the leaves.
Fischer-Tropsch has enhanced strongly in recent years, due to considerations of resource use and the environment. Cobalt, iron and ruthenium supported catalysts are the best choice for the synthesis of long chain hydrocarbons from synthesis gas with a high ratio of / CO in H2. Search short shorts structural characteristics of cobalt catalyst that could affect the whole process of the Fischer-Tropsch process. Introduction