Essays on Motility

Introduction

Nutritional needs changes throughout a person’s life that if not properly assessed may lead to malnutrition. Malnutrition is the state of the body lacking important nutrients or having excess or imbalance of energy. According to studies, 16% of people over 65 years and 2% of people over 85 years are malnourished. Studies also show that approximately two-thirds of people occupying hospital beds are above the age of 65 years (Ahmed & Haboubi, 2010). Malnutrition is associated with a number of health outcomes such as poor wound healing, slow recovery from surgery, higher hospital readmissions, and deaths. Malnutrition is high ...

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Please insert your professor’s name here Please insert course number here Introduction Kinesins are proteins which serve as molecular motors for the directional transport of various cargos (Hirokawa et al. 10: 682-696). They perform this important function using different mechanisms to recognize, bind, determine the direction of transport and unload the cargos with an energy efficiency which can exceed 50%, thereby equipping them to play important roles intracellularly in the transport of organelles and vesicles, in biosensing as well as in the development of other bioengineering solutions (Agarwal 11; Hirokawa and Takemura 301: 50–9; Hirokawa et al. ...

INTRODUCTION

Klebsiella pneumoniae belongs to Klebsiella species of Enterobacteriaceae and constitutes the normal flora of the human mouth and intestine. K. pneumonia is the most predominant and clinically critical organism. Infections with K. pneumoniae are mostly contracted from the hospitals and principally occur in patients with damaged host defenses. The objective of this study is to perform techniques to identify the bacterium in the given sample and confirm its presence by staining and microscopic analysis.

Streaking may be performed on the clinical sample using Mac Conkey agar or blood agar with the goal of isolating colonies of the organism from ...

Introduction

At an old age, multiple medical medicals are almost unavoidable. The wellness of the body reduces and several elements may contribute to the ill condition of the individual. The elderly need special care with proper medical interventions. Geriatrics is a specialty aiming at resolving medical issues for old people. It is significant in promoting prevention as well as treatment of diseases in older adults. The medical wellness for the elderly is affected by some factors. One of the most sensitive factors influencing the participation of older individuals in medication regimen is the irresponsiveness of the body to the drugs. ...

Organism # 6

Molecular Biosciences 101 Section # Purpose Materials and Methods Gram Staining: Three circles were marked at the bottom of a clean glass slide and they were labeled as gram(+), gram(-) and unknown respectively. The three labeled circles were then inoculated with microorganism 6 using an inoculating loop. The bacterial smears were then air dried and heat fixed over a gentle flame. The slide was then flooded with primary stain, crystal violet for a minute by placing it on a staining rack. Excess crystal violet was washed off with a gentle stream of water. Thereafter, gram iodine was added and ...

The CAM therapies are known all over the world as alternative medical treatment which is built upon centuries’ long theory and practice. Nowadays CAM therapies are becoming instrumental in the health care system and widely used among the doctors, who often combine them with conventional medicine to achieve better results. Among various CAM therapies, osteopathy appears to be the one of the most efficient. Such a method of manual therapy has its proponents and opponents and has been widely discussed for the last few centuries. The purpose of this article consists in considering and clarifying the history, methods, advantages ...

These two readings emphasize on how it is interesting to know that cell evolution research is advancing in new and exciting ways at the intersection of genomics, cell biology, molecular biology, biochemistry, and microbiology. The aim of the papers is to reexamine one of the more revolutionary conjectures made to account for the origin of the complicated kind of cell that is the structural unit of the higher animals and plants. The first reading is entitled “Origin of eukaryotic cells: 40 years on”, the paper is authored by John M. Archibald. The book is aimed at discussing the ...

Identification of mystery microbe based on its morphology and biochemical properties

The experiment was conducted to detect the species of a given mystery microbe. The microbe was subjected to a battery of tests in order to identify its physical and biochemical characteristics. Based on the tests, different possible microbe species were eliminated to finally arrive at the right conclusion. The possible microbes included Escherichia coli, Providencia alcalifaciens, Enterobacter aerogenes, Staphylococcus epidermidis, Klebsiella pneumonia, Micrococcus luteus, Serratia marcescens, Mycobacterium smegmatis, Sarcina aurantiaca, Pseudomonas aeruginosa and Bacillus licheniformis. The first test conducted was to detect the Gram staining properties of the given microbe. This helped in identifying whether the given microbe had a thin ...

Introduction

As a multi-functional protein, Cytoplasmic Actin can be found in all eukaryotic cells at higher concentration levels of over 100 μM. It is the most abundant protein found in most eukaryotic cells, which makes it a critical player in different cellular functions, such as maintaining cell shape and polarity to transcription regulation. The structure of Cytoplasmic Actin is distinguished by a large number of polymorphic proteins which form the filaments. In eukaryotic organisms, such as archaea and eubacteria, actin-like proteins activities are related to sub-cellular organization, motility, cell shape maintenance and cell cycle progression; they are either associated to cell membrane or ...

Structure and Functions of Cytoplasmic Actin

Cytoplasmic actins refers to the conserved proteins. Actin can be found in all eukaryotic cells, and are involved in variety of cell motility. Protein structure is formed by combination of variety of amino acids by losing the molecule of water. Proteins get involved into variety of biological functions, and proteins have different types of structures depending upon the requirements. This paper intends to discuss different types of protein structures, their functions and other related aspects. The structure of proteins can be divided into three categories i.e. primary, secondary and tertiary. The structures of proteins are polypeptides-sequences that get ...

Tissue and Cellular Organization

The circle of life on the earth is very complicated, though sometimes it seems to be rather easy. People see plants, insects, various fluids, surface and soil, but they often do not think of all the complexity of the constitution of bodies that fill up the world. In other words, everything consists of cells and tissues, and in order to understand the essence of every matter it is important to investigate their structure. There are some organisms, such as bacteria, that are unicellular or they are made up of only a “single cell” (Science Daily, 2014). These one-celled organisms ...

Background

Tetrahymena is a unicellular ciliate has always been the main model of studying the hormonal system of all the unicellular animals. Tetrahymena functions by, producing, storage, and the uptake of insulin that is a hormone that is similar to that of the mammals. It functions as an immunocytochemical and the functionality. The plasma membrane and the nuclear envelope of Tetrahymena have insulin receptors that are similar to that of mammal receptors and act as their binding capacities. The cells also have a second messenger and some signal pathway for the insulin. This insulin also influences the formation of other hormones. When there ...

Purpose

Materials and Methods Gram Stain: the test was done to differentiate Gram-positive from Gram-negative organisms. A drop of the unknown 300 was suspended on a slide and the culture spread to an oven thin film. The culture was air dried and fixed over a gentle flame. Crystal violet stain was added over the culture and allowed to stand for 60 seconds. The stain was poured off and rinsed gently. Iodine solution was added on the smear, allowed to stand for 60 seconds and the stain poured off. The slide was rinsed with running water, and a few drops of decolorizer solution ...

Abstract

The purpose of this study is to analyze the organ systems that were studies previously in class and determine the common disease connected with one of the following systems: integument system, skeletal system, digestive system, and urinary system of the human. I have chosen the digestive system due to the fact it unites a set of vital organs. With the malfunction of at least one of them the whole body will be influenced by the consequences. The organ which was chosen to be studied is stomach. The first part of the case study includes the brief analysis of the preferred ...

The Digestive Tract

Part I: Parts of the Digestive Tract/System Part II Section A The Mouth The digestive tract starts at the mouth. This is the first step of digestion. When one takes the first bite, food begins the digestion process through chewing. Chewing breaks down the food into more soluble pieces. This also increases the surface area for which the digestive enzymes can work on the food in the latter stages of the digestion process.

Oesophagus

The oesophagus is located in the throat near the windpipe (trachea). This is the second stage of the digestion process. This part ...

Introduction

Bacillus Subtilis are the organisms that are aerobic, Gram Positive, spore-forming belonging to the Bacillus genus. The organisms are together with other species that are closely related play a crucial role in disease, food poisoning as well as food spoilage. Lack of methods that are standardized for the identification of the organisms whether coming from the food or environment has made the tests to be difficult. Use of morphological as well as physiological tests have offered the best ways to identify organisms in the laboratory although there are inconsistent and lack of reliance in these methods. Identification of an ...

1.0 Mitochondria in eukaryotic cells Organelles are special compartments surrounded by a bilipid membrane which separates them from the rest of the cell which carry out specific functions. An example of an organelle is the mitochondria which are known to be the “powerhouse of the cell.” They have their own genome (mtDNA) and are semiautonomous. They are said to have evolved from a free α proteobacterium like organism (Takasugi, Yagi, et al., 2010). The word mitochondria is derived from two Greek words: “mitos” which means thread and “chondros” which means “grain”. These two words offer an apt description of the morphology ...

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Assignment 1: Molecular Cell Biology

3001BPS Molecular Cell Biology 2012 Assignment 1 Instructions: Use onlythe 9pages and spaces as provided. Type all textusing at least 10 point font. Diagrams should be hand drawn. PART A

Genetic studies for identifying genes involved in lysosome biogenesis led to the identification of a gene encoding a novel protein of approximately 80 kDa. An antibody was raised in rabbits to investigate the subcellular localisation of the protein using both immunofluorescence microscopy and immunogold electron microscopy. Mouse monoclonal antibodies to a known lysosomallumenal protein, hydrolase , were used as controls in these experiments. The results ...

1.0 Introduction As men advance in age, there are several changes that occur in their reproductive system. The changes particularly occur within the testes. The testicular mass decreases with aging. There is a decline in the levels of testosterone and as a consequence of the decline, men tend to have decreased libido and reduced number of spermatozoa. Aging in itself does not render a man sexually incompetent rather it presents several challenges to sexual performance. Some men develop erectile dysfunction although this may not necessarily be a direct consequence of aging. It may be caused by medications such as the ones used ...

Introduction

Ice cream, a milk-based good, is an excellent medium for microbial growth owing to high nutrient value, virtually neutral pH value (~pH 6–7), and elongated storage interlude of ice cream. The components of ice cream may be of a diversity of amalgamations of milk, cream, condensed milk, dried milk, colouring materials, flavours, fruits, nuts, sweetening agents, eggs, and eggs products, and stabilizers. Any of these could add to microorganisms’ growth and influence the quality of the goods as evaluated by its bacterial load or the presence of different explicit bacteria species. Time reliant heating throughout the ice cream creation decreases ...

Introduction:

The bacterial negative gram bacilli group Enterobacterriaceae have both motile and non-mitole relationships with peritrichouse flagella. Both types of bacteria, however, have the ability to fermet glucose and get nitrite from nitrates, as well as produce gas. They are a common find in greenhouses, and there are hundreds of species of this microorganism, including Proteus, Escherichia coli, Klebsiella, Salmonella Enterobacter, pneomoniae, etc. The pathogenic types of this bacteria have the ability to bring about diseases in animals and humans.

In this test, two varying types of Enterobacteriaceae will be identified (Klebsiella pneumonia and Escherichia coli. This will be accomplished ...