Cell wall Essays

  • Nursing Case Study 1 Tobramycin

    1399 Words  | 6 Pages

    corticosteroid, which works to prevent the release of substances in the body, such as leukocytes, that cause inflammation. It does this by binding to glucocorticoid receptors to either activate or influence the biochemical behavior of most inflammatory cells.1 Tobramycin is an antibiotic, which works to fight off bacteria

  • Caspofungin Research Paper

    1955 Words  | 8 Pages

    echinocandin antifungal agent licensed as a first-line therapy for invasive candidiasis in patients with moderate to severe illness or recent exposure to azoles [1]. Caspofungin acts by inhibiting the synthesis of (1,3)-β-D-glucan of the fungal cell wall, ultimately causing cell death [2]. The recommended dosage regimen of caspofungin is a loading dose of 70 mg followed by 50 mg daily (70/50 mg), administered intravenously over 1 h. Caspofungin is highly protein bound (~ 96%) and metabolizes slowly in the liver

  • Colistin Case Study

    2242 Words  | 9 Pages

    Q1A: What is the mechanism of action of colistin? Colistin is an antibiotic that works best against Gram-negative bacteria. It works by binding to LPSs (lipopolysaccrides) and phospholipids in the outer cell membrane of the bacteria. This, in turn, disrupts the outer cell membrane by displacing cations and leaking the intracellular contents, combining it with outer cellular contents, causing the bacteria to be unable to differentiate the bacteria’s intra and outer cellular contents from one another

  • Hydroquinone Study

    1068 Words  | 5 Pages

    Daptomycin caused a reduction in cell viability of 3 log 10 CFU/mL after 6 h in PBS while tetracycline caused only bacteriostasis. TBHQ had no effect on bacterial viability for the first 120 min of the experiment, but killing was observed thereafter. The bacterial killing was initiated after the conversion of TBHQ into TBBQ and the extent of kill was increased with increasing TBBQ concentration, ultimately leading to a 4 log 10 drop in cell number after 6h. TBBQ was rapidly and extensively

  • Essay About Vietnamese Food

    771 Words  | 4 Pages

    Living in a new place can be a tough thing. One of the hardest things in my life is to move along from my home country to study in Vietnam because I have to adapt myself to the new environment. After nearly two years of being in Vietnam I have found out that the unique of Vietnamese culture, friendly people, beautiful and attractive places make Vietnam charming and unique. But if you asked me what do I like most in Vietnam, undoubtedly my answer would be the food. Vietnamese food is well-known

  • How Does Sucrose Affect Osmosis Experiment

    1460 Words  | 6 Pages

    Osmosis Investigation Aim the aim of this experiment is to investigate the effect of changing the concentration of sucrose on the rate of osmosis in cylinders of potatoes. This would happen by using similar sizes and lengths potato cylinders and applying them to different concentrations of sucrose(0%, 10%, 20%, 40%) in small beakers then measuring the change in mass of the potato cylinders afterwards. Maintaining all variables unchanged such as pH, same size, and a constant temperature. time taken

  • Potato Osmolarity Experiment

    303 Words  | 2 Pages

    The aim of this experiment was to find out how many sugar did the potato include, how many sugar did we have every day by eating the potato. To know the sugar that includes in the potato we have to compare the mass of the potato before and after the experiment with different concentration of sucrose solution. We went through our procedure, put the result into the data table and calculate the percent change to the graph. And get the osmolarity bass on the graph we have. The mass of the before the

  • Botulinum Toxin Therapy Research Paper

    6761 Words  | 28 Pages

    Botulinum Toxin Therapy Botulinum toxin is produced by anerobic bacillus Colstidium botulinum, is a potent neurotoxin. That is inhibits the presynaptic release of acetylcholine and binds to acetylcholine receptors at the postsynaptic membrane.(122 B) There are seven distinct serotypes of Botulinum toxin : A, B, C1, D, E, F, and G. Only Botulinum toxins type A and B are commercially available. Four types of botulinum toxin are approved by FDA for clinical use in the USA. 1. Onabotulinumtoxin A (A/Ona

  • Alkaline Phosphatase Lab Report

    1627 Words  | 7 Pages

    carried out is to determine the kinetic parameters, Km and Vmax, of Alkaline Phosphatase. Theory, Principles and Application of Principles Enzymes are a huge varying group of proteins which are needed to carry out essential metabolic functions in cells. Substrate-specific enzymes, like Alkaline Phosphatase, act as catalysts lowering the needed activation energy to convert the substrate to product. Enzymes are made up of amino-acids and amino-groups have side chains referred to as R-groups. These

  • Polyploidy Advantages And Disadvantages

    1020 Words  | 5 Pages

    Introduction Polyploidy is an inherited condition whereby the organism possesses more than 2 complete sets of chromosomes. It is common amongst plants and some fish and amphibians. Advantages of polyploidy include the fact that they are able to use their genes function in other ways that are not necessarily needed in non-polyploidy organisms which allows them to evolve in many different ways. Another way is by disrupting certain self-incompatibility systems, thereby allowing self-fertilization. However

  • Sucrose Concentration Lab Report

    575 Words  | 3 Pages

    Higher Concentration of Sucrose Lowers the Mass of a Potato Independent Variable: Concentration of Sucrose used Dependent Variable: Mass of each Potato after Experiment Constant: Size of Potato being used at room temperature Introduction We learned about hypertonic and hypotonic environments before this lab as well as what takes place during osmosis. Do potatoes loose or gain mass when soaked in specific solutions such as sugar or salts? Sugar is a large molecule and has low permeability

  • Potato And Osmosis Experiment

    859 Words  | 4 Pages

    Discussion The effect of different concentration on the percentage change in mass while osmosis was observed, and each experiment was performed by calculating the initial and final masses of the potato pieces and the small bag of Visking tube. According to the table 1 and graph 1, the effect of concentration was identified as the concentration of sucrose increase the percentage change in mass of potato also increase because sucrose is hypertonic solution which means that it has a higher amount of

  • Summary: Heme Binding Studies

    1785 Words  | 8 Pages

    The in vitro evaluation of these hybrids against D6 and W2 strains of P. falciparum depicted activity in the micromolar range. Also, these hybrids exhibited high selectivity indices and low toxicity against the tested cell lines. Three compounds (7g, 8a and 8b) exhibited better antimalarial activity (IC50 = 0.019 µM to 0.033 µM) than the standard drug chloroquine (IC50 = 0.035 µM) against CQ-sensitive strain, whereas except 7a, 7b, 8c, 9a, 9b and 9e, all the compounds

  • Soap's Effect On The Surface Tension Of Water

    864 Words  | 4 Pages

    Soap’s Effect on The Surface Tension Of Water By: Lusinda Garcia Biology I - Pre-AP December 10, 2017 Introduction Surface tension is when the surface of a liquid that’s in contact with gas, acts like a thin elastic sheet. Water has a high level of surface tension, which means that when the molecules on the surface of water are not surrounded by similar molecules on all sides, they're being pulled by cohesion from other similar molecules deep inside. These molecules bind to each other strongly

  • Effect Of Sucrose Concentration On Osmosis

    1489 Words  | 6 Pages

    Research Question What impact will solutions of different concentration have on the percentage change in the masses of potato tubes? Variables Independent Variables The concentrations of sucrose in the solution (M per mL): 0.2 0.4 0.6 0.8 1.0 The control: Water with no salt/sugar added (therefore 0.0 M per mL) Dependent Variables: The percentage change in the mass of the potato tubes after bathing them in sucrose solutions of different concentrations Controlled Variables The variable

  • Potato Experiment Osmosis Experiment

    899 Words  | 4 Pages

    The experimental hypothesis for this experiment was prove as the results from the experiment provide evidence to suggest so. The osmosis process was shown when the potato cylinders were submerged in the salt solution and over time this only became more prominent. Looking at graph A, the potato cylinders submerged in the water solution gained mass and became harder when pressure was applied. This meaning no osmosis happened as expect as the mass gain implies there was just passive transport. The

  • Potato Osmosis Lab Report

    1078 Words  | 5 Pages

    through a cell membrane into an area of a higher solute concentration. The movement goes the way of the solvent with more solute because the lower solute concentration is drifting through balancing the ratio of solute per solvent (En.wikipedia.org, 2018). Surface Area to Volume Ratio shows the amount of area the entity has versus the amount of space inside the entity. If the entity was a cell for example, a larger ratio is preferred because when the cell grows and gains a smaller ratio the cell will divide

  • Potato Osmosis Investigation

    1779 Words  | 8 Pages

    Name: Simon Lau An Investigation to find out how the Concentration of a Salt Solution will affect the mass of a Potato Investigation Background Information: In this investigation we are going to see how osmosis occurs in a potato and affects the mass by reducing or adding onto it. Osmosis is the diffusion of water between a semi-permeable membrane from a higher concentration to a lower concentration. Variables that can be explored in this investigation is how the concentration of salt solution

  • Personal Narrative: My First Day At State Prison

    773 Words  | 4 Pages

    Prison. I’ve been here so long, I don’t even remember what I did wrong. I could have robbed a national bank, attempted to assassinate a US ambassador, or what. I wouldn’t know. The only thing I remember was what I left: family and friends. Them, and the wardens, from all of my previous venues. On my first day in state prison (at the time I was located in Los Angeles, CA), I was welcomed by my first warden. A “gentleman” older and taller than me, was waiting for me as I walked through the gates of

  • Compare And Contrast Prokaryotes And Eukaryotes

    709 Words  | 3 Pages

    be unicellular or one-celled. Cells are a part of every living organism, even the smallest ones. They are alive, and show the six characteristics of life. These cells are divided into two groups: eukaryotes and prokaryotes. Prokaryotes and eukaryotes might be similar, but they also have a lot of differences. First of all, eukaryotes and prokaryotes have the same basic structure. An example of this is the cytoplasm. Cytoplasm composes the volume or the inside of a cell. Cytoplasm is the place where