The Effect Of A Temperature Increase On The Breathing Rate Of A Locus
Introduction
This investigation will attempt to prove, whether or not a change in
temperature will affect the respiration rate (and therefore the
breathing rate) of a locust. Locusts are 'poikilothermic' and I will
be taking this factor into account when predicting the locust's
reaction to a temperature change.
Preliminary Testing
Preliminary tests consisted of a 'mock experiment', a kind of trial
run of the real thing. The test was carried out as follows:
· Fill a beaker with water of the desired temperature
· Place the locust in a boiling tube and place this in the water
· Observe the number of times the locust's abdomen moves up and down
and record the breathing rate over a period of time
· Repeat for different temperatures
These 'basic' preliminary tests uncovered a few 'flaws' in the
experiment and helped to highlight a few aspects that needed careful
consideration. Aspects that will need to be altered are, the length of
time left for the locust to acclimatise to the new temp. and the
length of time left for the locust to recover. Other factors that will
need consideration are, whether or not to take the locust out of the
tube to monitor its breaths, and over how long should its breathing be
monitored?
It was decided that the locust would need 3 minutes to acclimatise to
the new temperature and that 4-5 minutes would be sufficient time for
it to recover after being subjected to a change in temp. A period of
acclimatisation is required because preliminary tests showed that
locusts took an average of 3 minutes for their breathing rate to be
affected by the temperature change. A period of recovery is required
because it took an average of 4 minutes, 30 seconds to return their
breathing rate to normal
Research into 'Locusts' showed they breathe through their tracheae,
and a movement of their abdomen draws air in and pushes it out. This
means that, in order to count the number of breaths the locust takes,
..., Department of Zoology, Miami University, Oxford, OH, Available from Journal of Insect Physiology. (46 (2000) 655–661)Retrieved from http://www.units.muohio.edu/cryolab/publications/documents/IrwinLee00.pdf
My hypothesis for this experiment is that the higher the levels of caffeine the water flea was exposed to, the quicker the heart rate would be.
1. We hypothesize that the metabolic rate for the cricket and the cockroach will be different when the two animals experience physical stress and temperature changes.
Drosophila melanogaster is a model species used commonly for research in the areas of genetics and phylogeny (Kohn and Wittkopp, 2007). Drosophila is a model species due to the abundance of offspring, short generation times, and the ease of identifying wild type vs ebony phenotypes (University of South Florida, 2017, Biodiversity Lab Manual). This experiment is being performed in order to evaluate whether or not a fly culture after 3 generations will conform to the Hardy-Weinberg equilibrium equation. This equation is being used as a null hypothesis and will most likely not be achieved due to the relatively small population of flies being used in the experiment as well as other factors such as genetic drift (Dansereau, 2014). The experiment will take place over seven weeks in which the procedure will alternate between scoring the
In this lab we try and figure out the effects of exercise on cellular respiration, and identify a role of carbon dioxide production, breathing rate, and heart rate in determining the rate of cellular respiration. To do this we made a Phenol Red solution and used a straw to blow into it with no exercise to see how long it would take for the color of the Phenol Red solution to change, after this we measured our heart, and breathing rate. Then we did these same steps again after 1 minute, then another 2 minutes of exercising (Note: This lab was incomplete). The problem of this lab is “ How will carbon exercising, and increased carbon dioxide production affect the color of the Phenol Red, our heart rate, and our breathing rate. I hypothesize that if we exercise then we will affect our cellular respiration, and cause the Phenol Red to change color in a faster rate, because when we exercise we breathe heavily resulting in a higher carbon dioxide production which will cause the Phenol Red to change at a faster rate.
In the following experiment, we will attempt to examine the relationship between metabolic rate and environmental temperature in both an ectoderm and an endotherm. I predict that for the ectotherm, the metabolic rate will increase as the outside environment temperature will increase. I also predict that the metabolic rate in the endotherm will remain relatively the same as the outside environment temperature changes. I also make the prediction that the ectotherm will have much lower metabolic rates than the endotherm.
We were unable to reject the null hypothesis with our results from trial one. The calculated chi value was less than the critical value. Our calculated chi value was 5.00, which is 0.99 less than the critical value at 5.99. Although the results did show a trend that followed our initial prediction where bright light is preferred amongst the house crickets, the statistical results demonstrated that these observations were mainly random occurrences. Initially, before calculating our statistical results, we thought that the crickets picked the brighter region because it is often associated with heat; since the house cricket needs heat in order to develop and survive, we thought that this was an important factor that may influence the cricket’s choice in preferable section. During our experiment, we also observed that many of the crickets were not really decided when placed into our experimental setup. Many of the house crickets only ran around in circles in the stacking dish. After the two minute timeframe, we marked the location of each cricket and most of the crickets rema...
Australian desert animals are exposed to such conditions as scarcity of food, increased body temperature, and dehydration. However, through behavioral, physiological, and anatomical adaptations, they can survive in the harsh outback. What specific functions allow desert animals to conserve water and reduce heat gain while maintaining homeostasis? How is metabolism affected? For many Australian animals, enzymes or cells are altered and hormones adjusted. Australian Western chestnut mice exhibit a specific physiological adaptation of recent discovery. These mice are able to regain glycogen through endogenous carbon sources after periods of exercise, thereby making up for scarce food resources. Behaviorally, poikilotherms adapt to harsh desert conditions through quiescence, or inactivity during the day, and panting or licking for evaporative cooling. What other seemingly ordinary ways have Australian animals allowed for their survival? Research explains how Australian animals have adapted, such that their physiology and lifestyles prevent susceptibility to harsh desert conditions.
During the early parts of exercise odour breathing rate increases and if that increases then always our tidal volume increase but during steady state excise they start to plateau off and therefore our respiratory centre that is found inside our medulla so as soon as our breathing rate plateaus our tidal volume will do the same thing and plateau off.
Fortunately, the assumptions made about maternal care in insects do not have to be accepted or rejected based only on faith or an educated guess; today it is possible for these predictions to be empirically tested so that the data may be recorded and analyzed. The following experiment is just one example of the various ways in which ideas regarding insects and maternal care may be effectively evaluated.
As you read this question, cells in your eyes are sending information to your brain which your brain uses to form an image of the words that you read. Is this information being sent along afferent or efferent nerves?
The Intergovernmental Panel on Climate Control (IPCC) was established in 1988, reported in 2007 in “very high confidence” that since 1750 human activity has played a major part in overloading the atmosphere with carbon dioxide. Whether it’s through cellular respiration or the burning of fossil fuels is debatable. Cellular respiration is a process of creating energy and it takes place in all living things, even in plants. Carbon dioxide, oxygen, light and water are important factors in this process. Keeping a balance level of carbon dioxide is crucial to the earth’s atmosphere, because if it gets too high, it increases the average temperature on earth, which is unfortunately what we are dealing with and call “global warming”. I believe cellular respiration does not affect global warming as greatly as industrial fossil fuels do.
Respiration- is the process of air exchange, oxygen is obtained and carbon dioxide is eliminated.
The respiratory system is a biological system consisting of specific organs and a specific structure used for the process breathing. Respiration is accomplished through the nose, mouth, trachea, diaphragm and the lungs. The respiratory system is responsible for the inhalation of oxygen and exchanged to carbon dioxide when oxygen is exhaled. Respiration or ventilation takes place in the respiratory system. Organs of the respiratory system extend from the nose to the lungs. Respiration takes place in all living things. Each day the average adult breathes about 20000 times .Even if the air we breathe is dirty or polluted the respiratory system filters out the foreign matter and organisms that enter the body through the nose and mouth. Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory track. The process of ventilation begins when oxygen enters the through the mouth and nose. The oxygen then passes through the larynx and then through the trachea. The trachea is a tube that enters the chest cavity which then splits into two smaller tubes known as the bronchi. Bronchus then divide again forming what we call the bronchial tubes. The bronchial tubes lead directly into the lungs where the tube then again divide into many smaller tubes called bronchioles. Bronchioles then connect to small sacs known as alveoli. Alveoli are responsible for exchanging oxygen into carbon dioxide. Inhaled oxygen passes into the alveoli and then diffuses through the capillaries then into the atrial blood. Meanwhile the waste rich blood from the veins then release carbon dioxide into the alveoli. The diaphragm pumps oxygen into and carbon dioxide out of the lungs. The respiratory system is divided into an upper and lower re...
The Mechanism and Regulation of Breathing Breathing is an involuntary movement that is controlled by the medulla, which is part of the hind brain. Air is sucked into the lungs. through an active process called inspiration. The external intercostals muscle contract and the internal intercostals muscle relax this causes. the ribs to be drawn upwards and outwards.