Cellular respiration also known as oxidative metabolism is important to convert biochemical energy from nutrients in the cells of living organisms to useful energy known as adenosine triphosphate (ATP). Without cellular respiration living organisms would not be able to sustain life simply because nutrients would not metabolize in a productive manner. Cellular respirations was implemented in this laboratory by measuring the amount of O2 consumed/used by inserting respirometers that consisted of germinating and non-germinating peas into room temperature baths and low temperature baths. Evidently, in the respirometer that was placed in the room temperature bath and contained the germinating peas had the most O2 consumed. At 20 minutes a total …show more content…
As the seeds consume oxygen by respiration, the number of molecules of gas (n) in the respirometer decreases, likewise the change in the number of molecules is directly related to the amount of oxygen consumed. The movement of water into the pipette is a measure of the volume of gaseous O2 consumed by the respiring seeds. The dry or non-germinating peas lie dormant while the germinating peas do not. The temperature in relation to the dormancy or non- dormancy will affect the seeds in the following way. If the germinating peas are in favorable conditions such as “comfortable” weather then cellular respiration will obviously occur at a more expansive extent than in the dormant peas. Methods 1. A room temperature bath and an ice bath were prepared. The ice bath was set to be approximately 12°C while the room temp bath was set to be 21° C. 2. The volume of a handful of germinating peas was attained. The graduated tube was refilled with 25 mL of water. Dried peas were placed in the graduated cylinder and then glass beads were added to attain the volume equivalent to that of the germinating peas. 3. The procedure was repeated to prepare a second set of germinating peas, dry peas, dry peas plus beads and glass beads for use in the remaining respirometers. 4. All respirometers were labeled. 5. Respirometers 1-3 were placed in the ice bath and 4-6 were placed in the room temperature bath. A sling was placed so that the pipette tip was not submerged in the
Prior to starting the experiment, to keep the water temperature stable and consistent, the proposal to ensure this would happen was to utilise the water baths. Due to the shortage in equipment, the method was then amended to use two plastic containers and use a kettle to ensure that the water temperature was consistent. This was to guarantee that the results collated were accurate for all trials conducted.
All cells in the human body require sufficient amount of energy in order to sustain life. Cells get their energy through a process called cellular respiration. In this process cells use glucose in the presence of oxygen as a fuel source to synthesize highly energetic molecules of adenosine triphosphate (ATP). ATP is immediately consumed after its formation, so the process of cellular respiration is constantly ongoing. The starting components, glucose and oxygen are converted into carbon dioxide, water and energy. The process of cellular respiration can be divided into three stages: glycolysis, Krebs cycle (citric acid cycle), and the electron transport chain. At the end of the process a total of 38 ATP molecules are produced. In this experiment,
The purpose of the Cell Respiration Comparison was to test the respiration of different types of organisms with different conditions. The importance of testing the respiration was to know in what types conditions the organisms could respire the best. The way that we found out which organism respired the best was by using a Labquest that calculated the respiration rate. When calculating the respiration rate, we found that germinating peas with room temperature respire at a higher rate than germinating peas with a cold temperature. With our findings we can conclude that the temperature affects an organism's respiration
This experiment discusses the rate of respiration with germinating peas, non-germinating peas and glass peas. My hypothesis that was stated prior to the experiment states that as sucrose concentration increases the time it takes for it to turn green will decrease because substrate is available. The hypothesis is supported in the experiment by the data that was collected in the experiment. For example, from 0 drops of sucrose to 6 drops of sucrose the time continuously decreased from 53.67 to 31.5 seconds. In this process of fermentation, anaerobic respiration breaks down sugars and produce CO2 and ethyl alcohol. The first phase is an energy producing phase where cells break down molecules of glucose to produce two molecules of pyruvate and
To begin the Cellular Respiration lab, have the lab set up as ordered on the lab manual. After reading its beginning instructions, the lab should be ready for testing the carbon dioxide concentration that is inside the chamber. Procedure should follow by weighing 10 grams of the germinating mung beans then the beans should be placed inside the Testing Chamber. Next, insert the carbon dioxide sensor with the germinating mung inside the Testing Chamber and form a closed seal. Start the machine by pressing play and collect the corresponding data. By following this procedure, calculation of the carbon dioxide concentration for dormant mung and glass beans are eligible. The variables that are controlled in this experiment are the quantities, such
For this lab we will be using an enzyme to catalyze a reaction to speed up the process of turning 2H2O2 into 2H2O + O2. An enzyme is a specific protein molecule that catalyze a specific chemical reaction. The catalase enzyme will be used. Catalase is an enzyme that helps break down H2O2 (Peroxide). These enzymes can be found in your liver to help break down toxins.
A piece of filter paper was moistened and then placed in a petri dish, and any excess water was poured off. The harvested seeds were then placed in neat rows on the upper two-thirds of the filter paper. The petri dish was then tilted on end in a water reservoir containing approximately two centimeters of water. The reservoir and dish were then placed under the fluorescent light to germinate for 48 hours. After the 48 hours, the
It is hypothesised that the dicots (dwarf beans) will have a faster growth rate then the wheat. The aim is compare the growth and germination rates between the monocots and dicots. It has been found and clearly visualised so far that the beans are germinating faster. It also clearly visualises that the wheat seeds are continuously no make much progress. During the experiment currently many changes had have to been made. One example of the change made was adjusting to more or less water due to a public holiday on the 19th of October. Throughout this experiment the days the plants were watered on were Mondays and Fridays. Each time when watering the plant, the measurements, such as height, length and so on were observed and recorded into a
1. This is so the temperature is kept constant at whatever temperature you want. Five minutes should long enough for the temperature in the tubes to equilibrate
Cellular respiration is vital for life. Without the process of cellular respiration our cells would not have the energy needed to survive. One of the end products of cellular respiration is Adenosine Triphosphate (ATP) and it is the form of energy vital for life. All cells, animal and plant, need ATP to survive. ATP is used during the process of repairing, maintaining, and reproducing our cells. Glucose is starting produced for the process of cellular respiration and is it is critical for our bodies to regulate the amount of glucose it holds. If too much glucose is absorbed at one time it can have very adverse effects to our body as a whole. At the other end of the spectrum, too little glucose in our blood stream could also be harmful to our
The materials required to complete this experiment were two bowls, ice water, two thermometers and four stopwatches.
Cellular respiration, also known as aerobic respiration, occurs in the mitochondria and is what gives us energy so we can eat, move, and breathe. It starts in the digestive system, where food is broken down into glucose, a simple sugar. The glucose goes into your bloodstream alongside your blood cells carrying oxygen to your cells, for example, the oxygen and glucose will go to your muscles. Within the cells, the mitochondria take the oxygen and the glucose and cause a large reaction turning the glucose and oxygen and glucose into carbon dioxide, water, and large amounts of adenosine triphosphate, or ATP, which is used for anything your cells need to work on. (Aerobic respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O +ATP ) The carbon dioxide is carried
The purpose of this lab was to demonstrate the effect of temperature and germination or nongermination on cell respiration and the relationship between dependent and independent
Cellular Respiration is the combination of metabolic cells and processes that occur within the organisms cells. This process coverts biochemical energy into ATP and results in the removal of waste products. There are four main steps of Cellular Respiration. Glycolysis, Transport Reaction, Citric Acid Cycle and Oxidative Phosphorylation. These processes and or steps involved in cellular respiration are known as catabolic reactions. These reactions are important because they are what cause the larger molecules to break down into smaller molecules releasing energy that is necessary in order to carry out the rest of the process.
Supplies necessary for completing the experiment were a gram scale, at least one Styrofoam cup, at least two glass beakers, at least one thermocouple for measuring temperature, an ice bath to cool down the water and a microwave to heat the water. The beakers were used to first measure out the correct amount of water with the gram scale. The weight of the beaker was taken into effect and subtracted from the ending weight of the beaker and water combined. After two beakers were filled with the appropriate amount of water for each experiment according to Table I, the beaker containing the water to be chilled was lowered into an ice bath to reduce the temperature of the water. The beaker containing the water to be heated was put into the microwave and heated until the correct temperature was obtained. After verifying the temperature of the two liquids, they were mixed together into a Styrofoam cup. A thermocouple was quickly inserted and stirred in the water to maintain a uniform temperature reading. Once the temperature stabilized, the final temperature was recorded