It laid on its side as if it was, and showed no signs of movement. Then we decided that we were going to test sound on the mealworms. In this process, free energy is transferred from food molecules such as glucose into ATP molecules as glucose is gradually oxidized, releasing energy that is eventually used to attach inorganic phosphate groups to ADP molecules to produce ATP.
The way we find out the rate of respiration is to watch levels of carbon dioxide inside the tube. The main point of conducting this lab was to find out if various factors affect the rate of cellular respiration in an animal.
The data clearly shows that the increase in carbon dioxide concentration was greatest in the high pitch case and lowest in the control case. We predicted that through the 15 minutes we tested it for, the incredibly high frequency, or the dog whistle, would cause the mealworms to respirate at a faster rate, while the sound with the lower frequency would cause the two mealworms to respirate at a lesser rate than that of the higher frequency.
Place one set of respirometers in the room temperature water bath and the other set into the 10 degree water bath. Cellular respiration provides the cell with ATP.
KOH pellets absorb carbon dioxide and form an insoluble precipitate This increase in heat, may have made it more difficult to keep a consistent breathing. We also successfully determined the effect of at least one factor, sound, on the rate of cellular respiration.
Put non-absorbent cotton balls in each respirometer above the KOH pellets and then add the peas and beads. Pictures of the experimental setup — two mealworms in a jar with carbon dioxide probe.
We also predicted that high-pitched sounds would increase the rate of respiration more than low-pitched sounds, and this turned out correct too. I assume that it was during this period, that the meal Lab report cellular respiration mealworms did not move very much, being that it was in a new environment.
Respiration would be higher at 21 degrees because the animal would have to keep his body temperature up. In order to measure the rate of respiration, we used a carbon dioxide sensor.
Thus the data supports our hypothesis that sound increases the rate of cellular respiration by making the mealworms move around more because of discomfort. As the temperature increased, enzymes denatured so germination was inhibited. If you used the same experimental design to compare the rates of respiration of a 25 g reptile and a 25 g mammal, at degrees Celsius, what results would you expect?
Repeat these steps for another set of peas and beads. Therefore, the faster the carbon dioxide level increases, the faster the rate of reaction, and the slower the carbon dioxide level increases, the slower the reaction. We repeated this procedure in our uncontrolled experiments, with the exception of the changing of the temperature of the environment.
For low pitch, the change in carbon dioxide concentration over the same interval was an increase by ppm, and finally for high pitch, the change in carbon dioxide was an increase of ppm.
For about three minutes there is a flat line, where it seems the worm had not been breathing at all. Water baths held at constant temperature Volume of KOH is the equal in every tube Equilibration time is identical for all respirometers 3.
Design an experiment to examine the rates of cellular respiration in peas that have been germinating for 0, 24, 48 and 72 hours. The latter seems more plausible. Something I would find interesting to conduct is see how different vibrations or light prominence affects an organisms cellular respiration.
Germination, the seeds are growing and need to respirate to grow. The rate of cellular respiration is fastest with the highest pitch sound, while the next fastest rate is through the lower pitch, and lastly the control. To judge the consumption of oxygen in two different respirometers you must reach equilibrium in both respirometers.RESPIRATION and METABOLIC RATE page 43 6CO2 + 6H2O + light C6H12O6 + 6O2 C6H12O6 + 6O2 6CO2 + 6H2O + heat RESPIRATION page 44 metabolic rate is the energy use per kilo-gram (per unit mass).
This variable is Mealworms Stopper Syringe Pipette Chamber WATER BATH. The purpose of this lab was to design and perform our own experiment using organisms and manipulating specific factors of their environment (in our case the surrounding temperature) to increase or decrease the rate of cellular respiration in the worms.
The purpose of part two of the lab is to observe cellular respiration in animals, and in this case, mealworms. In part two, students measured the cellular respiration rate of mealworms by measuring their consumption of O2 in milligrams using the microrespirometers in water baths. The effect of increasing temperature on cellular respiration of mealworms 2 The hypothesis for this experiment is if there is a link between the temperature of the environment and the mealworms’ respiration rate, then increasing temperatures will increase the respiration rate%(5).
Measuring the Effect of Temperature on Mealworm Respiration Marie-Elena Cronin Kathleen McPhillips David Haas Experimental Design and Methods Results Room Temperature Cold Room Heat Lamps Methods Temperature Mealworms Heat Regulation Cellular Respiration Background Information and Objectives larval form of the mealworm beetle.
The purpose of this experiment was to study the effects of ethanol on the cellular respiration of mealworms. Cellular respiration is the process by which cells harvest the energy stored in food. It is the intake of oxygen and energy in the form of glucose, and the cells ability to break it down into carbon dioxide, water, and energy required for the body to function.Download