Biology Essays | Free Essays on Biology

essay company

The Study Of Forensic Entomology Biology Essay

Published Date: 23 Mar 2015

5 Pages (1,640 Words)

The study of insects that inhabit decomposing human remains as it relates to the medicolegal investigation of death is commonly known as forensic entomology. (Byers) The diversity of the field, a general overview of common insect life cycles and habits, and the data collection methods of insects, weather information, and scene observations will all be covered. The interpretation and application of entomological data recovered from the death ...

Click here to read more

P Amino Henzoic Acid Is The Limiting Regent Biology Essay

Published Date: 23 Mar 2015

3 Pages (1,004 Words)

The yield obtained through this experiment is 63 of the theoretical mass of ethyl-p aminohenzoic acid. There are few events that could be improved in order to issue the amount of yield obtained. First of all, the quality of reagent used is relatively small to acquire a good percentage of the product. In order for a greater percentage yield to be attainted this experiment, a great amount ...

Click here to read more

Cell Membrane Structure And Phospoholipid Layer Biology Essay

Published Date: 23 Mar 2015

8 Pages (3,159 Words)

A cell is the basic unit of life, and the cell membrane is an important structure present in all cells, irrespective of whether they are plant cells or animal cells. This structure is a vital component of any cell and it has a variety of important functions. Cell membrane functions include maintaining the boundaries of the cells, thus supporting the contents of the cell, maintaining proper cell ...

Click here to read more

What Is A Microorganism Biology Essay

Published Date: 23 Mar 2015

16 Pages (6,125 Words)

Health care professionals share the responsibility of preventing the spread of infection between themselves and clients and between clients. Clients at health facilities are more at risk than the rest of the people Sources of infecting microorganisms can be people or environmental objects, such as medical or nursing equipment that has become contaminated What is an infection? An infection is the growth of a parasitic organism within ...

Click here to read more

Crimean Congo Hemorrhagic Fever Viruses Biology Essay

Published Date: 23 Mar 2015

6 Pages (2,199 Words)

After an outbreak in 1944 in the Crimea region, a new disease was initially classified as Crimea Hemorrhagic fever. Afterwards, a similar disease appeared in the Congo and was later found to show similar pathogenesis as the Crimean Hemorrhagic fever. Thus, the name of the disease was modified to Crimean-Congo Hemorrhagic fever (CCHF). [i] Although this disease was recently classified, the first occurrence of this disease was noted in ...

Click here to read more

Difference Between Acclimation And Adaptation Biology Essay

Published Date: 23 Mar 2015

5 Pages (1,699 Words)

Adaptation for an animal is any genetically heritable trait that allows an individual to reproduce and pass on its genes. Example (Camels adapting to be able to survive long periods of time without water in the desert) - Acclimation for an animal is the process by which an animal gets used to a changing environment. Example (If a deer lives in a forest, and one year that ...

Click here to read more

The Ash Content Of A Crude Drug Biology Essay

Published Date: 23 Mar 2015

12 Pages (4,452 Words)

The ash content of a crude drug is generally taken to be the residue remaining after incineration. It usually represents the inorganic salts naturally occurring in the drug and adhering to it, but it may also include inorganic matter added for the purpose of adulteration. There is a considerable difference varies within narrow limits in the case of the same individual drug. Hence an ash determination furnishes ...

Click here to read more

The Impact Of Anaerobic Soil Conditions On Plants Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,345 Words)

Abstract: This review will try to illustrate some of the impacts that waterlogging has on plants, in monocotyledons & dicotyledons. The review includes, a general introduction into the impact of anaerobic/waterlogged soil condition on plants, quoting from different sources in this field. Then it focuses on five plant species of global interest or importance, Barley, Tomatoes, Soy Bean, Cotton and Rice, showing the effect of waterlogging on ...

Click here to read more

Types Of Dna Sequencing Methods At Different Periods Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,515 Words)

DNA sequencing is the process of reading the correct order of base pairs, which builds up a DNA. It is a fundamental requirement for modern gene manipulation technique in the molecular field. Evaluation of 3 billion base pairs of 24 different chromosomes was a great success in the Human Genome Project. It has helped to reveal 20,000 to 25,000 human genes and also about the controlling regions ...

Click here to read more

The Effect Of Eutrophication Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,422 Words)

Eutrophication - When there is an increase in the rate of supply of organic matter in an ecosystem usually caused by runoff of nutrients from land and food industries. It causes a dense growth of plant and algae life, decreasing the oxygen supply leading to death of animals; the phenomenon being called Eutrophication. The two main nutrients which it's caused by are nitrogen and phosphates. Role of ...

Click here to read more

The Concentration Of Reducing Sugars Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,561 Words)

Benedict's reagent is used to determine if a reducing sugar is present. Benedict's reagent is used as a test for the presence of all monossacharides and generally also reducing sugars. These include glucose, galactose, mannose, lactose and maltose. Even more generally, Benedict's test will detect the presence of aldehydes (except aromatic ones) and alpha-hydroxyl-ketones, including those that occur in certain ketoses. Benedict's reagent contains blue copper(II) ions ...

Click here to read more

Different Factors Affect Growth Of Cress Seeds Biology Essay

Published Date: 23 Mar 2015

6 Pages (2,262 Words)

This will affect both germinating seedlings and growing plants. Different concentrations of CO2 can cause plants to grow at different rates. Plants need CO2 in the air in to respire in the same way, as we need oxygen. Without it they would not be able to create energy so they couldn't grow. The problem with trying to monitor the affects that different amounts of CO2 would have ...

Click here to read more

Test For Saponin Glycosides Biology Essay

Published Date: 23 Mar 2015

9 Pages (3,501 Words)

Male wistar rats weighing between 150 and 220 gm were used for this study. The animals will be obtained from animal house, IRT, Perundurai medical College, Erode, TamilNadu, India. On arrival, the animals were randomly grouped in polypropylene cages with paddy husk as bedding. Animals were housed at a temperature of 24±2Ã‹Å¡C and relative humidity of 30-70%. A 12:12 light: day cycle was followed. All the animals ...

Click here to read more

The Cyanobacteria Or Blue Green Algae Biology Essay

Published Date: 23 Mar 2015

3 Pages (1,109 Words)

Cyanobacteria or blue-green algae are single-celled organisms whose existence dates back nearly four billion years, placing it among the earth oldest and most primitive forms of life. Cyanobacteria thrive in almost every environment like hot springs, salt marshes, moist soils etc. They are found most frequently in freshwater lakes and rivers throughout the world, but can exist almost anywhere where there is water, including inside of other organisms ...

Click here to read more

The First And Second Green Revolution Biology Essay

Published Date: 23 Mar 2015

8 Pages (3,028 Words)

Plants are an essential part of lives on the planet and a crucial source of economic prosperity for almost every country. They provide directly or indirectly almost all the food of man and animals. They also supply industrial raw material, for instance, timber, paper, rubber, products for the chemical industries such as starch, sugars, oils and fats, energy in the form of fuel wood, starch and sugars ...

Click here to read more

Platelet Count Of Children With Dengue Fever Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,555 Words)

INTRODUCTION Dengue is a mosquito-borne infection that in recent decades has become a major international public health concern. Dengue is found in tropical and sub-tropical regions around the world, predominantly in urban and semi-urban areas. Dengue haemorrhagic fever (DHF), a potentially lethal complication, was first recognized in the 1950s during dengue epidemics in the Philippines and Thailand. Today DHF affects most Asian countries and has become a ...

Click here to read more

Psychological Effects Of Atropine Biology Essay

Published Date: 23 Mar 2015

5 Pages (1,799 Words)

Atropine is a competitive antagonist of acetylcholine which binds to the muscarinic receptor in order to inhibit the parasympathetic nervous system. It causes a reversible blockade of the action of acetylcholine and it can be overcome by increasing the concentration of acetylcholine at receptor sites of the effectors organ (e.g. by using the anticholinesterase agents which inhibit the destruction of acetylcholine). Atropine is an alkaloid or an ...

Click here to read more

Physical Properties Of Lactic Acid Biology Essay

Published Date: 23 Mar 2015

5 Pages (1,674 Words)

Lactic acid is a hydroxycarboxylic acid, which is widely used in food, pharmaceutical, leather, cosmetic and textile industries. It can be polymerized to biodegradable and biocompatible plastic, i.e. polylactic acid, which has environment-friendly and great potential for replacing petrochemical plastic. Industrially, it can be produced by either chemical synthesis or microbial fermentation. Presently, approximately 90% of lactic acid was produced by lactic acid bacteria fermentation. Fermentative production ...

Click here to read more

The effect of heat on the rate of respiration

Published Date: 23 Mar 2015

7 Pages (2,527 Words)

Introduction: All living things require energy in carrying out activities. The process by which energy is made available from nutrient of cells is called cellular respiration. Cellular respiration is the controlled release of energy, in the form of ATP from organic compounds in cells. Respiration occur under two conditions which is with the presence of oxygen and without the presence of oxygen. If there is presence of ...

Click here to read more

Contrast Media IVU Barium Enema Biology Essay

Published Date: 23 Mar 2015

12 Pages (4,789 Words)

Contrast media is a medical substance used to describe the contrast of a structure or fluid in the body in the context of shooting diagnostic.Therefore it is not possible to describe a particular anatomical structure image on the imaging technique itself can not generate or describe this information. This is usually used to reveal the presence of images such as blood vessels and gastrointestinal tract. Contrast media can be ...

Click here to read more

Advantages Of Semisynthetic Penicillins Biology Essay

Published Date: 23 Mar 2015

4 Pages (1,540 Words)

Introduction Amoxycillin is a semisynthetic β-lactam antibiotic derived from a common chemical nucleus of naturally occurring Penicillin G, 6-aminopenicillanic acid. Vital to Amoxycillin's biological effects is the β-lactam ring contained within this nucleus. Amoxicillin is bacteriolytic and bacteriocidal to susceptible gram positive and gram negative microbacteria. Today, amoxicillin is the 9th most prescribed drug in the world. Penicillin discovery Up until the early 1900's, the only treatment ...

Click here to read more

Causes And Effects Of Lung Cancer Biology Essay

Published Date: 23 Mar 2015

3 Pages (1,185 Words)

Lung Cancer occurs when the cells within an organism undergo mutations that cause the cell not to perform their regular duties. The cancerogenous cell then goes through the process of mitosis and produces a tumor in the tissue. Cancerogenous cells reproduce very quickly, unlike healthy cells that "preserve a system of checks and balances on cell growth so that cells divide to produce new cells only when ...

Click here to read more

Plant Hormones And Induction Of Organogenesis In Vitro

Published Date: 23 Mar 2015

6 Pages (2,302 Words)

Plant tissue culture plays important roles in agriculture field by improving the production and quality of crops using recombinant DNA technology. The mechanisms and effects of plant hormones in promoting organogenesis in different types of plants are only partially understood. Using petunia leaves and carrot, the effects of auxin and cytokinin were investigated by carrying out organogenesis. The leaves and carrots were placed in NAA, kinetin and ...

Click here to read more

The Cause And Effects Of Rotavirus Biology Essay

Published Date: 23 Mar 2015

3 Pages (1,165 Words)

This is a report based on the study of Public Health and Awareness. The main focus of this study is on a particular virus called the Rotavirus. Rotavirus is the most common cause of severe diarrhea among infants and young children, and is one of several viruses that cause infections often called stomach flu, despite having no relation to influenza. It is a double stranded RNA virus ...

Click here to read more

Advantages And Disadvantages Sexual Reproduction In Animals Biology Essay

Published Date: 23 Mar 2015

3 Pages (971 Words)

Reproduction is the production of new individuals by an existing member or members of the same species. It is a fundamental characteristic of living things; the ability to self replicate in this way sets the living world apart from the non-living. Sexual reproduction is the exclusive form of reproduction in all higher invertebrates and in all vertebrates, whereas in few parthenogenesis is also possible. Also it occurs ...

Click here to read more

Methanation Process Of Producing Methane Odourless Colourless Gas Biology Essay

Published Date: 23 Mar 2015

9 Pages (3,407 Words)

Introduction- What is methanation and how is it used? Methanation is the process of producing methane (CH4) from H2 and CO. Methane (an odourless and colourless gas, composed of four hydrogen molecules attached to one carbon molecule) is found in natural gas that we can use in our homes for energy. Methane found in natural gas is produced by anaerobic bacteria, which break down organic material and ...

Click here to read more

Respiratory system

Published Date: 23 Mar 2015

4 Pages (1,364 Words)

The purpose of the respiratory system is to allow gas exchange throughout all body parts of most animals. The evolution of the respiratory system is responsible for different respiratory structures in diverse animals and it has allowed them to keep up with their oxygen demands. It functions by removing carbon dioxide from the lungs and replenishing it with oxygen. In this paper I will compare the respiratory ...

Click here to read more

Metabolism Of Vitamin C In Humans Biology Essay

Published Date: 23 Mar 2015

10 Pages (3,610 Words)

In order for your submitted work to be considered for assessment you must attend both the introductory talks and the practical demonstration for this experiment - registers will be taken at both. You will be given a demonstration of the operation of an NMR spectrometer for the analysis of selected bodily fluids. Sorry but we only have one such spectrometer so it has to be a quick ...

Click here to read more

The Urinary Tract Infection Biology Essay

Published Date: 23 Mar 2015

9 Pages (3,354 Words)

Urinary tract is the most common organ to experience infection which occurs from neonates to geriatrics. It account for 8.3 million doctor visit each year and represent the second most common infection in the human body (Sumaira Zareef et al.,2009). By the advancement of age, the attack of UTI increases in men due to prostate enlargement and neurogenic bladder. Recurrent infections are common and will lead to ...

Click here to read more

A Combustion Reaction Is A Fast Chemical Reaction Biology Essay

Published Date: 23 Mar 2015

3 Pages (1,168 Words)

A combustion reaction can be defined as a fast chemical reaction between a fuel and an oxidizer that releases heat. Traditionally, the fuels used in the majority of practical combustion applications have been hydrocarbons, mainly due to their high energy density and easy availability (till recently). In most practical applications, combustion becomes a study of chemically reacting flows with rapid exothermic reactions, and involves a strong interplay ...

Click here to read more

ORDER TODAY!

Our experts are ready to assist you, call us to get a free quote or order now to get succeed in your academics writing.

Get a Free Quote Order Now