Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Respiratory system in quizlet
Respiratory system in quizlet
Respiratory system in quizlet
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Respiratory system in quizlet
Summary The respiratory system is responsible in regulating gas exchange between the body and the external environment. Differences in respiration rate indirectly influence basal metabolic rate (BMR) by providing the necessary components for adenosine triphosphate (ATP) formation (Williams et al., 2011). Observation of gas exchange were measured and recorded for two mice (mus musculus) weighing 25 g and 27 g under the conditions of room temperature, cold temperature (8°C), and room temperature after fasting using a volumeter. The rates of oxygen consumption and carbon dioxide production were measured and used to calculate BMR, respiratory quotient (RQ) and oxidation rate. The mouse at room temperature was calculated to have a BMR of 2361.6 mm3/g/hr. Under conditions of cold temperature and fasting, the BMR values decreased to 2246.4 mm3/g/hr and 2053.2 mm3/g/hr respectively. Rates of glucose oxidation increased under these treatments while rates of fat oxidation decreased. Respiratory quotient (RQ) values were calculated to determine the fuel source for metabolic activity. On a relative scale, protein or fat appeared to be the primary fuel source for all three treatments although the mouse at 8°C had the highest RQ and may have relatively used the most glucose. It was also concluded that BMR in mice are greater than in humans. Introduction In this experiment mice were studied as examples of organisms that employ physiological mechanisms to maintain and regulate internal body temperature. The respirometer uses the principle of water displacement. As the amount of gas in the respirometer changes, this will be reflected by an equivalent displacement of water in the pipette. Remember that at the same temperature and pressure,... ... middle of paper ... ...ted trends and are likely affected by many other factors such as illnesses, the presence of humans, or different external environments. Works Cited Akin, J. A. (2011) Homeostatic Processes for Thermoregulation. Nature Education Knowledge.3, 7. Biology 2A03 Lab 4 Respiratory Gas Exchange in a Mouse Lab Manual. Winter Term 2014 (2014). Biology Department. McMaster University. Gordon, C. J. (2012) The mouse: an “average” homeotherm. J Ther Bio.37, 286-290. Minke, B. and Maximilian, P. (2011) Rhodopsin as Thermosensor? Science.331, 1272-1273. Williams, C. T., Goropashnaya, A. V., Buck, C. L., Fedorov, V. B., Kohl, F., Lee, T. N., and Barnes, B. M. (2011). Hibernating above the permafrost: effects of ambient temperature and season on expression of metabolic genes in liver and brown adipose tissue of arctic ground squirrels. J Experi Biol. 214, 1300-1306.
Indeed, amongst the many disparities between humans and minks, their respiratory systems are very similar for they are both mammals. The metabolic rate is much greater in mammals than any other class of animals, which means the demand for oxygen is greater. Humans and Minks are both endothermic, so they require a more potent respiratory system. Similar to humans the lungs of minks contain millions of alveoli. Alveoli are tiny sacs that are packed together in clusters as if they were grapes. The tiny sacs or alveoli, allows for a greater surface area for the exchange of gases. Another similarity between humans and minks is the air passage. The first stage in air passage is inhalation which is done through the mouth and/or nose. The air then goes past the pharynx to the larynx, through the glottis (opening for the vocal chords), in...
The respiratory system has the function of getting rid of carbon dioxide and acquiring oxygen. It works closely with the circulatory system to feed the body the proper amounts of oxygen it needs to function efficiently. The respiratory system of an American Mink is very similar to that of a human in spite of the fact that there are some minor modifications. Both Humans and Minks have two lungs, the right lung is larger and has three lobes and the left lung has two lobes. The reason why the left lun...
The body has specific ways of controlling the internal temperature: if the body is too cold then involuntary shivering occurs this causes the skeletal muscles to contract therefore producing heat. When conscious movement occurs the muscles again contract and relax which generate heat to warm the body up. Another way the body increases the temperature unconsciously the hairs all over the body stand on end causing a layer of air to be trapped, which acts like an insulator. When the body is too warm sweat is produced from pores in the skin, as this liquid sits on the skin it slowly evaporates causing the body temperature to drop, however if ...
In this activity Respiratory Responses to Metabolic Acidosis and Metabolic Alkalosis is recorded. As the metabolic rate increases, BPM increases, Blood pH decreases, carbon dioxide increases, hydrogen ion increases and bicarbonate level decreases. Likely as the metabolic rate decreases, BPM decreases, Blood pH increases, Pco2 decreases, Hydrogen ion decreases, and bicarbonate level decreases. The respiratory system compensates for metabolic
Simon, E. J., Reece, J. B., Dickey, J. L. (02/2012). Campbell Essential Biology with Physiology, 4th Edition [VitalSource Bookshelf version 6.2]. Retrieved from http://online.vitalsource.com/books/9781256902089
Person, A. & Mintz, M., (2006), Anatomy and Physiology of the Respiratory Tract, Disorders of the Respiratory Tract, pp. 11-17, New Jersey: Human Press Inc.
Homeostasis involves the whole body, but certain organs have larger roles in maintaining the balance. The liver and pancreas maintain suitable glucose levels in the blood, with kidneys removing metabolic waste products and maintaining suitable salt and water levels within the blood. The skin and liver help maintain body temperature with lungs controlling oxygen and carbon dioxide levels in the blood and the blood itself transporting the nutrients and waste products around the body.
It is when much needed oxygen is obtained by the body in order for respiration to take place and the waste CO2 is taken out of the body. In us mammals, the exchange takes place in the lungs which contain a large number of alveoli. These are sponge-like structures in which the diffusion takes place. They are highly adapted to diffuse the gases as they give a large surface area for exchange of the gases.
...and Calcitonin. Thyroxine is the hormone that regulates metabolic. The effect of this hormone is an increase in metabolic rate. During this cellular respiration increases.
Westerterp-Plantega MS; Rolland V; Wilson SA; Westerterp KR. (1999a). Satiety related to 24 h diet-induced thermogenesis during high protein/carbohydrate vs high fat diets measured in a respiration chamber. European Journal of Clinical Nutrition, 1999 June; 53(6): 495-503.
Ross, A. C. (2005). Physiology. In B. Caballero, L. Allen, & A. Prentice (Eds.), Encyclopedia of
Energy content of food and the metabolism rate relate to thermoregulation. Thermoregulation is the ability of an organism to keep its body temperature. Energy and thermoregulation is related to each other because heat is the process of the energy moving. For the human beings, thermoregulation is needed because it reacts to different temperatures that surrounds the body. Our body shivers when the temperature around the body is too cold, and the body sweats when the temperature around the body is too hot. All organisms keep their temperature at a constant level by changing their behavior, and this is thermoregulation.
Energy means, it is the capacity to do work. Energy metabolism is the process through which energy is produced and transformed. Food gives the energy source. We need energy to move our body muscles to do the activities. The role of energy in the body is to drag the oxygen from the air and diffuses into our blood stream. Energy is needed to circulate the blood and also for breathing and taking in oxygen.
The human respiratory system consists of organs responsible for taking in oxygen and expelling carbon dioxide gas. Oxygen in air enters through the upper respiratory tract, which begins with the nose and the mouth, and is carried into the pharynx, the trachea, and into the lungs, where the exchange of gases occurs.