Comprehensive assignment
1. (5 pts) Describe the metabolic process providing your energy while you were walking (at an easy pace) before the bee stung you. Include which molecules are being consumed.
The metabolic process providing my energy while I was walking at an easy pace is aerobic metabolism. During aerobic metabolism, mitochondria absorb from the surrounding cytoplasm these molecules: ADP, phosphate ions, O2, and organic substances like pyruvate. These molecules go through the citric acid cycle. The electron transport chain is also involved to create ATP. For each molecule of pyruvate that goes into the citric acid cycle, the cell gains 17 ATP molecules. Glycogen reserves can also be used and converted to glucose. Glycolysis breaks down glucose molecules to create more pyruvate. However, if not enough glycogen is available, the cell can also use amino acids and lipids to do this. This is a very efficient process but also only contributes a fraction of the ATP during aerobic metabolism. At moderate levels of activity, most of the energy during aerobic metabolism comes from work done by the mitochondria. The muscles involved during this process need all of the energy produced as ATP, and there is no extra left over in this particular metabolic process if muscle activity increases ("Muscle Tissue" P. 306-7).
2. (8 pts) Trace the sound of the bee from your outer ear to perception. (Include all focusing, conduction, transduction, transmission and perception processes and structures).
Sound vibrations from the buzzing bee vibrate the air molecules as pressure waves around my ear and enter the auricle which is cone-shaped in order to direct these sound waves into the ear via the external acoustic meatus. The sound waves reach the tympanic membrane through the external acoustic meatus and cause it to vibrate. When the tympanic membrane moves, it causes the auditory ossicles to move. The auditory ossicles are made up of the malleus, incus, and stapes. These ossicles are important
The metabolic process providing my energy while I was walking at an easy pace is aerobic metabolism. During aerobic metabolism, mitochondria absorb from the surrounding cytoplasm these molecules: ADP, phosphate ions, O2, and organic substances like pyruvate. These molecules go through the citric acid cycle. The electron transport chain is also involved to create ATP. For each molecule of pyruvate that goes into the citric acid cycle, the cell gains 17 ATP molecules. Glycogen reserves can also be used and converted to glucose. Glycolysis breaks down glucose molecules to create more pyruvate. However, if not enough glycogen is available, the cell can also use amino acids and lipids to do this. This is a very efficient process but also only contributes a fraction of the ATP during aerobic metabolism. At moderate levels of activity, most of the energy during aerobic metabolism comes from work done by the mitochondria. The muscles involved during this process need all of the energy produced as ATP, and there is no extra left over in this particular metabolic process if muscle activity increases ("Muscle Tissue" P. 306-7).
2. (8 pts) Trace the sound of the bee from your outer ear to perception. (Include all focusing, conduction, transduction, transmission and perception processes and structures).
Sound vibrations from the buzzing bee vibrate the air molecules as pressure waves around my ear and enter the auricle which is cone-shaped in order to direct these sound waves into the ear via the external acoustic meatus. The sound waves reach the tympanic membrane through the external acoustic meatus and cause it to vibrate. When the tympanic membrane moves, it causes the auditory ossicles to move. The auditory ossicles are made up of the malleus, incus, and stapes. These ossicles are important
Cited: “Drugs and Medications – Epipen im.” WebMD. Last Revised: 2013. First published by WebMD, 2005 Cummings, 2012.