Cellular Respiration Lab Report

The first lab was conducted to analyze how germination affects the rate of cellular respiration in lima beans compared to dormant seeds. In order to

There are many procedures during this lab and many materials needed for an accurate analysis of data. First, fill a 100 mL graduated cylinder with 50 mL of water. Add 25 germinating peas and determine the amount of water that is displaced. Record this volume of the 25 germinating peas, then remove the peas and put those peas on a paper towel. They will be used for the first respirometer. Next, refill the graduated cylinder with 50 mL of water and add 25 non-germinating peas to it. Add glass beads to the graduated cylinder until the volume is the same to that of germinating peas. Remove the beads and peas and put on a paper towel. They will be used in respirometer 2. Now, the graduated cylinder was filled once again, determine how many glass beads will be require to reach the same volume of the germinating peas. Remove the beads and they will be used in respirometer 3. Then repeat the procedures used above to prepare a second set of germinating peas, dry peas and beads, and beads to be used in respirometers 4,5,and 6, the only difference is the temperature of the water.

Stop the trial and restart, selecting the option to record data at 10-minute intervals. Slowly insert nutrients and allow the water pump to disperse them and dissolve them. Once the nutrient is completely added in and dissolved, turn off the pump by unplugging it. Also record the time in the trial that the pump was turned

Combustion vs Respiration Activity 1 - Answer the following question in relation to combustion Explain what a combustion reaction is. Combustion usually occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water. Write the general word equation for combustion. In words, the equation for combustion, in most cases, is a hydrocarbon plus oxygen equals carbon dioxide plus water plus heat.

In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a respirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease in atmospheric pressure or temperature changes. There is a direct relationship between oxygen consumption and Carbon Dioxide produced, therefore the more O2 consumed the more CO2 produced. To keep the amount of CO2 produced from canceling out any pressure gained or lost from the consumption of

Cellular respiration is the series of metabolic process by which living cells produce energy through the oxidation of organic substances. Cellular respiration takes place in the mitochondria. Fermentation is the process by which complex organic compounds such as glucose, are broken down by the action of enzymes into simpler compounds without the use of oxygen. The significance of these pathways for organisms is to allow for an organism to be able to generate ATP. Some organism that undergo cellular respiration are bacteria and fungi. Some organism that undergo fermentation are yeast and muscle cells. In cellular respiration, glucose is oxidized and releases energy. In cellular respiration, glucose produces ATP and 3-carbon molecules of pyruvate. The pyruvate is then further broken down in the mitochondria where it becomes oxidized and releases CO2 (Upadhyaya 2014). In the fermentation process oxygen does not play a part. This process converts glucose into pyruvate and produces ATP. From there pyruvate breaks down into CO2 and acetaldehyde (Upadhyaya 2014) Monosaccharides are known as simple sugars and their main function is being the source of energy for organisms. Disaccharides are two monosaccharides joined by a covalent bond and their primary function is to provide food to monosaccharides. Some disaccharides

Abstract: In this procedure, phenolphthalein will be used to detect changes in pH resulting from the production of CO2 during cellular respiration. Because phenolphthalein is red in basic solutions and colorless in acidic solutions, you can monitor cellular respiration by measuring acid production as change in pH. CO2 produced during cellular respiration can combine with water to form carbonic acid. By measuring the volume of NaOH used to neutralize the carbonic acid produced by the CO2, and thereby calculate a proximate measure of respiration.

The purpose of the Cellular Respiration lab was to identify if cellular respiration is sped up due to exercise. To conduct the experiment each student filled a beaker with 15 ml of water and three drops of bromothymol blue. Next each student blew into the beaker through a straw until the water mix turns yellow. When carbon dioxide is added too bromothymol blue it changes to a yellow color. Each student times how long it takes for the water to turn yellow, records the data, and then reset the lab. Subsequently the student would exercise for a total of five minutes and then repeating the lab, again recording how long it takes for the water mix to turn yellow.

Meanwhile, the peas did carry out cellular respiration. Thus by correcting the readings from the peas with the readings from the beads, it would should the actual rate at which cellular respiration will occur in peas through not allowing changes in outside conditions (i.e. atmospheric pressure) affect the respiration rate. By correcting the readings, it will show the most accurate results under the conditions of the lab without any changes affecting the

This experiment consisted of 3 respirometers, one with ants, one with radish seeds, and one with glass beads. Each with 4 pellets of KOH and a piece of cotton. They were placed in a water bath that was at 75 degrees fahrenheit. A bubble at the end of the respirometer was measured every five minutes, and this distance showed how well the organisms were respiring. The radish seeds were able to do the most cellular respiration in 25 minutes, with the ants being a close second, and the control respirometer of the glass beads doing the least.

This lab deals with the transpiration rates in plants, specifically a tomato plant that was used for this experiment. Transpiration is when water leaves a plant through the stomata as water vapor while the stomata is capturing CO2 for photosynthesis. This experiment used three different scenarios: a tomato plant with a light shining on it, a tomato plant with wind blowing on it from a fan, and lastly a tomato plant with nothing acting on it. The hypothesis is that the rate of transpiration will be fastest with light, faster with wind, and slow with the control. This hypothesis was rejected because the rate of transpiration is as follows with the wind having the fastest rate: with light the rate was 7.60 mm/min, with wind 10.20 mm/min, and control 4.33 mm/min. The cause of the wind having a faster transpiration rate than the light may have been due to the surface area of the leaves on the tomato plants. The surface area of the leaves for the wind experiment is 8,124mm2, and for the light is 7,740mm2.By doing this transpiration experiment it helps one to see what happens in plants daily and understand why it happens.

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

When recording the data one must be very cautious when matching the data with the correct temperature and make sure that the temperature is both accurate and precise. Also when collecting the data on the computer with gas pressure sensor you must wait make sure that it is fully configured to prevent from repeating the experiment, moreover, one should make sure that the rubber stopper is secured so no gas can escape and affect the data. Finally, more trials should be done to have more conclusive data.

To find the specific cellular respiration rate, a respirometer was used. A respirometer is a tube that contains the organism, KOH, and barrier between the KOH and the organism. The bottom of the respirometer has weights to keep the bottom of the respirometer submerged in water. A pipet blocks the opening on top of the respirometer. When the organism consumes oxygen, the pressure of the gases inside the respirometer decreases. As the oxygen, water enters the vacant area in the pipet. The KOH combines with the carbon dioxide produced by the organism to create a solid called k2co3. The k2co3 allows the pressure difference of the reduced oxygen to match the rate as the production of carbon dioxide.

Cellular respiration is a process that happens in all living eukaryotic cells. What cellular respiration does is turn food often carbohydrates into energy for our bodies. Cellular respiration starts with a carbohydrates sugar called glucose. What it does is alter and break down the six carbon molecule glucose and altering it creating two three carbon molecules called pyruvic acids in an anaerobic process called glycolosis (Cellular respiration). What this process does is create two ATP molecules which are basically molecules which provide energy to run all cellular processes in our bodies (king). However, from here in the process can turn aerobic, meaning using oxygen if present or anaerobic meaning when oxygen is not present in a