Recommended: Morphology and structure of skeletal muscle
Tn 4351 was originally isolated from bacteroides fragilis [30] . The transposon was successfully introduced into Cytophaga succinicans, Flavobacterium meningosepticum, Flexibacter canadiansis, Flexibacter strain SFI and Sporocytophaga myxococcoides by conjugation [25]. Tn 4351carries two antibiotic resistance gene. One of the codes for resistance to erythromycin and clindamycin which is expressed in bactroides but not in E.Coli. The other gene codes for resistance in tetracycline and is expressed in aerobically grpwn E. coli, but not in anaerobically grpwn E. coli or in bacteroides.
P4 – Describe the three structures of the skeletal muscle (Epimysium, Perimysium and Endomysium) There are three structures of the skeletal muscle: Epimysium is a thick layer of irregular connective tissue that pulls the entire muscle as well as protecting the muscle from friction that may be caused by other muscles and bones surrounding them. Also, it is the fibrous tissue which covers and surrounds skeletal muscles. The Epimysium carries on past the end of bones in order to create muscle tendons. Perimysium surrounds a bundle of muscle fibres, it is a casing of connective tissue.
In this three-week long experiment conducted in the Bio 13 Lab, we were able to analyze a single nucleotide polymorphism (SNP) in our own genomic DNA and then determine our genotype at this specific SNP. In week one, we extracted genomic DNA from our cheek cells with swabs and prepared our DNA for PCR (Polymerase Chain Reaction) that would amplify the region with the intended SNP of interest. After one week and after the PCR was run outside of the lab section, the resulting PCR product was purified and treated with restriction enzyme Ahdl in order to prepare for the final analysis of our genotypes. In the third and final week of the project, we analyzed our PCR products by means of agarose gel electrophoresis. By the conclusion of the experiment, we had completed the analysis at the SNP of interest and determined our genotypes for this SNP.
File one Summary: Skeletal muscles are made out of striated subunits called sarcomeres, which are made out of the myofilaments actin and myosin. Skeletal muscles contain myofibrils. Every myofibril is striated with dull and light bands. I bands contain just thin fibers, made fundamentally out of actin.
On Januray 26, 2023, Jelly Bones was found dead in room W1106, a lab in Huntley Highschool’s science wing. The victim was a caucasian female who appeared to be roughly in her mid to late teens with straight, shoulder length blonde hair. When investigator’s arrive on scene it seemed evident that a homicide had occured in the school. The body was discovered by chemistry and foirensic science teacher Mrs. Zuniga, lying unresponsive in the lab. The victim was wearing light blue jeans with a pale gray colored t-shirt.
Unknown Lab Report Unknown # 25 By: Jenna Riordan March 19, 2018 Bio 2843 1. Introduction Microbiology is the study of microorganisms found in all different environments throughout Earth, from the hot thermal vents at the bottom of the ocean to the ice at the top of a mountain.
The experiment overall was nicely conducted, and results were found through the information gathered. The dependent variable was established very quickly; furthermore, we can find the dependent variable was whether the athletes played a contact sport or a sport like baseball, where most concussions come from being hit by the ball. The independent variable is the number of concussions the test subjects obtained. Ultimately they could not control how many concussions each individual obtained but they controlled which individuals were chosen and what test were ran. The results that ran throughout the whole experiment was an overall success, the results show that multiple compared to single occurring concussions do not have an effect on P3 suppression.
Reflexes are involuntary movements that happened upon the body when struck in a certain area most of the time this is the way that the body does things in order to protect itself. We choose to study these reflexes and movements to understand how quickly they occur and understand exactly why the body feels it needs to protect yourself in these situations. The purpose of this experiment is to observe how quickly both the premotor and motor times are conducted by the body. Premotor is the time in between the moment of strike from the hammer in the moment of contraction of the muscles. Motor is the time it takes for the muscle contraction and angular change with the knee.
Muscular Strength, Endurance, and Power Naphong Aneksirikul CSU Long Beach Muscular Strength, Endurance, and Power Introduction: Muscles are used on a daily basis so understanding the importance of evaluating the different components of muscular fitness is crucial to our own understanding of our body. The components of muscular fitness include muscular strength, muscular endurance, power output, and isometric (static) contraction. Muscular strength is the ability of the muscle to exert force against resistance. Muscular endurance is the ability of the muscles to sustain and maintain force for a certain amount of time.
The experiment we conducted was done in order to tell the effect that moderate exercise had on cardiovascular physiology. When exercise is performed oxygen, consumption is increased approximately 10-fold in order to keep up with the requirements the muscles have (Shepard, 1999). This larger oxygen requirement increases the blood flow from 1 L/min to up to 20 L/min in order to compensate for the increased oxygen requirements of the muscles, which is known as exercise hyperemia (Guyton, 1985). Using a digital sphygmomanometer, which calculates blood pressure and heart rate through inflating a blood pressure cuff, allowing the observation of the change in heart rate and blood pressure after exercise (Kosinski, 2017).
Chemical Technology of MRI Machines In Chemistry there are multiple forms of different chemical reactions for a variety of reactions. In order to have a chemical reactions there must be a subject in which will be examined on how it was formed and the stages it has went through. For every chemical reaction, it requires at least two reactants or more in order to combine to form the final product of the subject. For instance, MRI machines are used on a day to day basis because of its effective results, but how is an MR image created?
For this experiment the hypothesis was that as body mass index goes up cardiovascular fitness will decrease. He based our hypothesis on the fact that if a person has a higher body mass index that would generally mean that the person would not be in the best physical shape. Taking that into consideration, a person with a heavier physical shape will have bad physical health. The heart is something that correlates directly to physical health, which is what makes me believe us believe that someone with a high body mass index will have low cardiovascular fitness. When you have low cardiovascular fitness the heart has to put more effort into working, which is the scenario that we used to generate our hypothesis.
Physiology of Skeletal Muscles L. D.G. Valerio, C. M. Villegas, R. H. Vito, L. R. Zamora Department of Biological Sciences, College of Science, University of Santo Tomas, España, Manila, Philippines Keywords Skeletal Muscles, Twitch, Kymograph, Fatigue, Ringer’s solution Summary The experiment was conducted to be able to determine the effect of graded response, load, pules, frequency, tetanus and muscles fatigue on the contraction of the muscle, specifically the gastrocnemius, by doing the procedures and a series of experiments to get various data. Introduction First we ask the question, what is a kymograph?
Introduction: The objective for the lab was to determine properties of materials by using a tension test. The properties that were determined was Young’s Modulus, ultimate tensile strength, and yield strength. Three aluminum alloys were tested. The first was the AA 2024 , which is high strength used in aerospace applications.
Biochemical tests are the tests used for the identification of bacterial species based on the differences in the biochemical activities of different bacteria. Bacterial physiology differs from one species to the other. These differences in carbohydrate metabolism, protein metabolism, fat metabolism, production of certain enzymes and ability to utilize a particular compound help them to be identified by the biochemical tests. Gram’s stain was originally devised by histologist Hans Christian Gram in 1884. Gram-positive bacteria stain purple, while Gram-negative bacteria stain pink when subjected to Gram staining.
