An investigation to examine the effects of temperature on membrane stability in beetroot, by assessing the degree of pigment leakage.
An investigation to examine the effects of temperature on membrane stability in beetroot, by assessing the degree of pigment leakage. Aim: - to discover how temperature affects the stability of the cell membrane in beetroot. Introduction:- Plant cells contain a plant cell wall as well as a cell membrane, which surround the protoplast (everything that is within the cell) of the cells. All cell membranes consist of a phospholipids bilayer, which are made up of two layers of phospholipids, hence the name. The plasma membrane is a partially permeable barrier between the cell and the extra cellular environment. The plasma membrane mainly consists of phospholipids. These phospholipids are a phosphate head, which is attached to two fatty acid tails (hydrocarbon chain). The phosphate group is highly soluble in water and so hydrophilic; however, the fatty acid tails are not soluble in water and therefore are hydrophobic. In the plasma membrane, the phospholipids are in two layers (hence the name phospholipid bilayer). The hydrophobic regions of the phospholipids line up together in the middle of the membrane, whilst the hydrophilic regions are on the outside of the membrane. Due to the hydrophobic regions of the phospholipid bilayer, it is generally not possible for large charged molecules or ions to pas through the membrane freely. The phospholipids have a hydrophilic (water
Understanding and using research
Unit 10 Understanding and using research Introduction For this assignment I will research in different fields of health and social care to come up with my hypothesis. I will base my research on factors affecting individual's health. I will then find out which health condition seems to be most popular in affecting individual's health. After doing some primary and secondary research on the different factors, I will then look more into depth in the condition that seems to be affecting pupils in large amounts. So I will base my hypothesis on the condition which is most popular in the world today. Research is mainly used in health and social care fields to investigate new aspects of care related situations by carrying out surveys and collecting qualitative data of some kind. It is also used to test and review existing knowledge from different sources such as internet books and is also used to test and review treatments and practices. It helps to explain the relationship between factors affecting health and well-being and helps to evaluate service interventions and policies and helps to make new policies and plans. There are different types of research methods in health and social care fields. Research methods are used to achieve the aim they have been carried out to achieve such as a hypothesis. They are then carried out to test their hypothesis to see if it's proved to be
business online
Task 1 In the report I will be investigating why it is important to have a business online, how it affects the business and the importance to investors and other businesses. I have chosen two businesses to research how being online helps them what their aims and objectives are A) 1. The online business I've chosen is Amazon 2. The super market I've chosen is Tesco B) Amazon.co.uk is famous for selling books but the turn over wasn't making enough profit, but now they sell other stuff like from cameras to coffee machines, exercise videos to Elvis CDs, they say there's something for everyone. They also enable independent sellers to sell new and used items on their website via Amazon.co.uk Marketplace. Within Amazon.co.uk you are able to use a variety of resources to help you make your choice, this including customer reviews and personal recommendations. The Amazon Associates program was the first online affiliate program of its kind when it launched in 1996. Today, it is the largest and most successful online affiliate program, with over 1,000,000 members world-wide Customer Focused - Amazon seeks to be the world's most customer-centric company, a place where people can find and discover anything they might want to buy online. Previously Amazon only sold books, music and toys, as they found out that they weren't even breaking even so they decided based their company
Unit 4 Business Studies
Unit 4: Investigating Electronic Businesses Introduction In this unit I will be comparing two existing businesses which I will be choosing and in the comparison I evaluate whether they achieve their business aims and objectives of having an online presence. In the second part of my coursework I will be recommending some improvements which are to be made for one of the businesses, and I will also highlight some factors which influence a business to open themselves up to online trading. And finally I will be also designing a new website for a new business and planning the creation of the new website. Electronic business is: "Electronic Business, or "e-business", may be known as a business which relies on an automated information system; today this is done by web-based technology. The term "e-business" was put together by Lou Gerstner, CEO of IBM. The Electronic business methods allow the business to put together their external and internal data together more efficiently and flexibly which allows them to work more closely with their key stakeholders; and to reach the expectations of the stakeholders like customers. E-businesses usually include e-commerce; e-commerce is simple seeks to add revenue streams using the Internet. The internet helps them build and enhance relationships between the business and the key stakeholders being the customers and improve efficiency.
Tesco's organisational structure
Task 1 Organisation: TESCO plc Our Mission TESCO is a company, which is dedicated to professional management of both people and property. They are committed to each other through mutual respect and support. We realize the importance of individual growth in order to strengthen the whole. They invest in the development of the individual through training, education and reward. TESCO is committed to serve our owners, our residents, agencies and each other with integrity, fairness and honesty. They seek a balance between preservation of our resources and realization of profit. TESCO's strive to combine accuracy and reliability with accountability. TESCO is a caring organization that endeavours to exhibit PRIDE IN EXCELLENCE AIMS AND OBJECTIVE > TO INCREASE PROFIT: TESCO 's profits have topped analysts' forecasts, coming in at £1.4bn, with turnover up 11.5% at £28.6bn. Britain's biggest food retailer also said it had achieved its target for emerging markets as underlying operating profits rose 78% to £212m. Analysts had forecast that the underlying pre-tax profit would be between £1.33bn and £1.39bn. Six years ago, TESCO launched a four-pronged plan to drive growth in food, non-food, and retail services like banking and overseas hypermarkets in places like Asia and central Europe. > TESCO expands TESCO has been expanding more than ever for previous six
ASDA's Ownership
Task 1: Business ownership ASDA's Ownership A). ASDA is a public limited company, which is also known as a PLC. An American retailing company called WAL-MART owns ASDA. Its shareholders own the company and this causes the ownership to constantly change, as the shares are constantly bought and sold. Most of the companies' shareholders are generally, old aged pensioners, banks and insurance companies. Before a PLC can be launched, they must have £50,000 or more and it must have a good financial record and, there must be enough people interested in buying shares in order to have a successful floatation. Floatation is when a company is on the Stock Exchange and is then launched to the public. WINES PLUS' Ownership Wines Plus is a partnership and is run by its owners. A partnership can be of a maximum of 2-20 people. The partners of the business share the responsibilities and risks of the business. Usually, if the partners have different skills, this provides the business with greater aspects as a different range of services can be offered and more profits can be made. Also, in some partnerships, there are also some sleeping partners. These are people that invest money into the business and receive a share of profits made but they don't have a say of how the business should be run. Before starting the business some partners sign a deed. This deed is called the Deed Of
Biology Revision notes - Human Biology
Blood Pressure * Each time your heart contracts, it pumps blood into out arteries. * The blood needs to be under pressure so that it reaches all the parts of the body. A pulse - this is the recoiling of the arteries. Arteries are elasticised so that when blood is pumped, they expand and then contract. * The fitter you are, the lower your heart rate is because your heart is more efficient. * Pressure is created due to the blood pressing against the arteries and this is known as blood pressure. Blood pressure appears as a fraction and is measures in mmHg: Systolic: the heart contracts and pumps - The highest pressure on the arteries. Diastolic: the heart is relaxes and doesn't pump - The lowest pressure on the arteries. (mmHg - millimetres/mercury) Blood pressure is affected by: * Weight - being overweight increases the risk of high blood pressure * Exercise - strengthens heart muscles and keeps the heart fit * Diet - avoid salty and fatty foods * Temperature * Alcohol * Stress * Smoking - narrows blood vessels * Inheritance * Age - blood pressure increases with age * Underlying diseases High Blood Pressure Can cause: * An artery to burst * A stroke * A heart attack * Death High blood pressure means that the blood is pushing too hard against the artery walls. This damages the artery lining and allows fat and calcium to build up and form a plaque.
effect of concentration of copper sulphate on the action of amylase to break down starch.
Biology Coursework Abstract In this investigation I am going to explore the effect of concentration of copper sulphate on the action of amylase to break down starch. Copper sulphate is a very common chemical that can be used in a lot of different areas, but little has been discussed on its effect on amylase. I will find out which type of inhibitor copper ion is and how does it actually inhibits amylase, and also how concentration of copper sulpahte will affect the rate at which amylase works. Aim of investigation The aim of this investigation is to find out how concentration of copper sulphate affects the action of amylase. Hypothesis The higher the concentration of copper sulphate, the slower the amylase works. Rationale There are two ways that we could have consumed copper sulphate. Water pipes are responsible for transporting water, and some of them are made out of copper. Copper pipes can become rusted if there is high sulphate content in the water, basic copper sulphate is precipitated which can grow through the pipe wall creating pit holes [1]. Copper sulphate is also used in some places to treat sewer lines, tree roots are constantly looking for water and organic sources and sewer lines are the perfect site for them. Tree roots will penetrate and damage the pipes which will is expensive to repair. Copper sulfate kills tree roots without killing the tree or
Unit 10 care practice and provision
Pippa Douglas Unit 10 care practice and provision National organisations like National health service (NHS) that provide health care fit for the 21st century, is designed around the service user, so that they get the individual care they need. It is divided into 'primary' and 'secondary' services, Primary services are usually the first place people contact for health advice or treatment, the service is provided locally to the particular person's home by GPs, nurses or therapists and secondary health services are based in hospitals which provide medical or surgical care. They are provided and supported by the NHS national organisations called primary care trusts (PTCS). PCTS research areas from national websites such as statistics finding the census population numbers, and find out what the people of a particular area are lacking regarding health care, they deal with providing primary and community services, and commission secondary services. They do this in order to determine what the area needs to make sure that it can provide the people with adequate services to improve the health of the local people within the area. The national PCT received back over 140,000 of completed questionnaires, surveys and listening events form where they got some opinions, feedback and statistics. Local PCTS, working with the national PCTS, the NHS, and the council work together, to
Epping Forest Coursework
Is the height of bracken greater in a light area than in a darker area? Planning: Aim: The aim of this investigation is to see how the height of bracken varies in a light and dark area. A fair prediction can be made that a change in light conditions will affect the height of the bracken. This is due to the fact that light intensity is one of the factors affecting photosynthesis. As light intensity increases the rate of photosynthesis also increases which causes the production of food to be greater. Due to this, the plant can grow more as it has more food, and light is not the limiting factor. As a result the height of bracken would vary between these two areas and would prove a very decisive investigation. I would expect the height of bracken to be greater in the area with the higher light intensity (light area). Hypothesis: Null hypothesis (H0): There is no significant difference between the height measured from the light and dark areas. This would be proved only if there is no correlation between the results obtained. Hypothesis (H1): I hypothesise that the height of the bracken in the light area will be greater than the height of bracken in the area with less light. A significant difference is expected between data collected in the light and dark areas. The bracken in the lighter area is should photosynthesise more and produce products at a faster rate. In turn the
