Elodea Plant Lab
Aquatic Photosynthesis of Elodea Leaves Lab Design Problem: What is the effect of temperature (warm, cool, room temperature) on the rate of photosynthesis in Elodea leaves measured by the levels of dissolved oxygen in the flask solutions? Hypothesis: If temperature is related to the rate of photosynthesis (levels of dissolved oxygen) then increasing the temperate will increase the rate of photosynthesis up to an optimal temperature. Variables: Independent: temperature of the water bath which the Elodea plant is immersed in Dependent: the rate of photosynthesis measured by the level of oxygen dissolved in the flask solution Constants: Relative size of the Elodea leaf, relative surface area of the Elodea leaves, (around 3 cm each), volume of water in all beakers, amounts of light exposure to the plants, and type of light source. Method: Materials: Light Source Elodea. Keep this warm and illuminated before you use it, 3 small flasks, 0g/L sodium bicarbonate (NaHCO3) solution, oxygen sensor Lab Quest data logger. Graduated cylinder Hot Plate 3 Large beaker (1 for warm water, 1 for cool water, 1 room temp) 3 thermometers Procedure: ) Day one: Before beginning the actual lab-Listen for teacher instructions and familiarize yourself with the LabQuest datalogger and its functions using the quick start guide. We will devote this day to learning how to use the
Consider the view that the royal prerogative is insufficiently controlled by either Parliament or the judiciary.
In historical times the royal prerogative was regarded as the sum total of the rights ascribed to the Monarch as feudal lord paramount over the entire realm. Dicey1defines prerogative in a more contemporary sense as the "discretionary authority of the Executive", explaining that this means everything which the Monarch or her servants can do without the authority of an Act of Parliament. Few prerogatives are exercised directly by the Monarch today. While some governmental powers are conferred or defined by statute the prerogative powers of the Executive exist in virtue of customary common law. Dicey's definition of Rule of Law states, in part, that there should be no arbitrary government power. Parliamentary procedure and judicial review are forms of control which when imposed, by the Legislature and the Courts respectively, upon the Executive enable compliance with this understanding of the Rule of Law. Government is dependent upon the support of Parliament for its existence. Ministers of the Executive must account to Parliament and be responsible for their exercise of the royal prerogative. These obligations of accountability and responsibility are owed both to the Legislature and to the various parliamentary select committees. The Separation of Powers doctrine requires the Legislature to assume the responsibility to influence, constrain, and demand justification for the
An essay explaining how two filmsdiffer in film-techniques - 'Of Mice and Men' and 'Goldeneye'.
An essay explaining how two films differ in film-techniques The two films Of Mice and Men and Goldeneye are very different in plot, but in structure they share many similarities. Many filming techniques are apparent in the opening scenes of both films; the establishment of the hero, the use of soundtrack, colour imagery, camera angles and sympathetic background. In Goldeneye the hero is James Bond (Also Known As 007). We first meet him running along the top of a very high dam. It was very dramatic because after running, he clipped himself onto a railing and dived off the top of the dam, falling for about 20seconds on screen onto the USSR chemical plant, which came up as a subtitle. We didn't see his proper face until about three minutes into the film. This told us that 007 was very daring, adventurous and was in some way connected with the USSR. Later on in the opening scenes, we discover, he is planning to blow up the Chemical Plant "For England" along with his sidekick 006. He is also quite a humorous character. In Of Mice and Men the hero is George. We first meet him in a sitting position, thinking hard about something. We can also tell he is on a train, as the sound represents that. Bars are in front of George, who is sitting in his own shadow, with light flashing on him. Each time the light does this, we see more and more of him. This then dramatically changes in
The concept of retribution implies.
Theories to be discussed:- * Retribution * Rehabilitation * Incapacitation * Deterrence The concept of retribution implies: A criminal deserves to be punished because he has done something socially or morally evil... * Is eye for an eye punishment In 1993 Michael Howard, the then Home secretary made a statement saying: "Let's make one thing absolutely clear; Prison works, it ensures we are protected from murderers, muggers and rapists; and it makes many who are tempted to commit crime think twice. This may mean that more people will go to prison. I do not flinch from that, we shall no longer judge the success of our system of justice by a fail in our prison population" (Ashton J, Wilson D: 16: 1998) * conviction for rape can carry a life sentence Look at R v Billam (1986), which sets out sentence tariffs for rape. This case set out guidelines for imprisonment of rapists, Billam suggests that rape carries an automatic custodial sentence, 'other than in wholly exceptional circumstances', the maximum sentence for rape is life, although, In terms of mitigation, if a plea of guilty is entered, effectively relieving the victim of the ordeal of having to appear in court, the guidelines state that this 'should normally result in some reduction from what would otherwise be the appropriate sentence'. Rehabilitation: Emphasis on the individual can be seen no more clearly
Criminal Justice System of Great Britain
The Role of the Trial The role of the judicial system is to protect the innocent, to pass judgement and to serve an appropriate form of punishment on convicted felons. This may include receiving a custodial sentence, serving a specified amount of community service or incurring a disqualification or penalty fine. All criminal cases in the UK initially commence in the same system. However the severity and details of the offence will affect the following: which court the accused may be trialled and sentenced in, the criminal proceedings and the level of punishment received. This essay will examine the differing categories of offence and describe the role of the trial to provide a basic overview of the Crown and Magistrates court systems of Great Britain. The criminal court system has two rankings. The lower is the Magistrates' Court and the higher ranking is the Crown Court. The Youth Court established in 1992 is a separate less formal division of the Magistrates' Court. It was set up for the trial and punishment of minors aged between ten and seventeen years old. Young offenders too young to be trialled as adults (unless they are being tried alongside an adult) and old enough to know right from wrong are forced to face the consequences of their actions. The youth justice system can impose sentences up to 24 months detention in a young offenders unit or a fixed amount of
What are the strengths and weaknesses of a positivist/empiricist approach to political analysis?
WHAT ARE THE STRENGTHS AND WEAKNESSES OF A POSITIVIST/EMPIRICIST APPROACH TO POLITICAL ANALYSIS? 21-Jan-09 560011924 POL1014A 807 What are the strengths and weaknesses of a positivist/empiricist approach to political analysis? Introduction introduction..... Positivists test their theories through direct observation. They contend that as they intend to answer empirical questions, direct observation will maintain objectivity due to them not considering reasoning and understanding behind the act. Direct observation is a quantitative method. For example if looking at voting behaviour, positivists would observe variables such as if someone votes, their age, race and class. This excludes personal motivation of an individual. From their raw results, positivists can construct correlations between the variables in order to establish a predictive model as to who will vote. This scientific method means that the political scientist's own views and experiences will not bias the results. However, many have criticized the idea that positivist methodology is objective. Within positivism, one of the tenants is that knowledge can only come from experience. Theories can only be compiled and tested if one is seeking to establish a casual relationship from prior experience. For example, if a positivist saw a woman crashing a car he may think that all women are bad drivers. He would then
A look at the Origin, Stigma/Discrimination and Government Involvement with AIDS in the United States of America and African Countries
AIDS Anyone can have it, Internationally feared, Deadliest Sickness A look at the Origin, Stigma/Discrimination and Government Involvement with AIDS in the United States of America and African Countries Acquired Immunodeficiency Syndrome, AIDS, is now known as being one of the most deadliest and incurable viruses in the world. AIDS snuck into America in the beginning of the 1980's, then exploded in what seemed a matter of moments. America would soon learn that this was not just a health problem in the "immoral" cul-de-sacs of American but an international epidemic affecting all types of life. Today's youth see's a constant fight in curing and eliminating AIDS around the world; however, this has not always been the case. AIDS has been most publicized in the United States and African countries. This paper will compare the origin of AIDS, the stigma and discrimination of AIDS and the government involvement with AIDS in the United States and African countries. Individuals who first appeared with AIDS in America during the early 1980's were diagnosed with Pneumocystis Pneumonia (PCP), which is usually found in people with poor immune systems. 1 However these individuals who were sick did not have poor immune system, but the individuals were homosexuals. As more and more homosexual males appeared to have the disease, it became labeled as GRID (gay related immune
Drought conditions, low and high temperatures, increased salt levels, pathogens and insects are common environmental stresses which plants are exposed to. Over time, plants have evolved unique mechanisms to respond to the stresses
Drought conditions, low and high temperatures, increased salt levels, pathogens and insects are common environmental stresses which plants are exposed to. Over time, plants have evolved unique mechanisms to respond to the stresses imposed in them. In response to pathogen infection, plants have two types of defence; constitutive and induced responses. Constitutive defences are those which are passive and always present in the plant. These defences are those such as the cuticle which is composed of waxes, cutin and pectin and the cell wall, composed of cellulose, pectin and lignin, both of which act as structural barriers against pathogens. There are preformed pathogen inhibitors such as saponins which disrupts pathogen cell membranes. For example, ?-tomatine in tomatoes acts against many fungal species. Other preformed inhibitors include alkaloids, phenols and tannins. Defence proteins are also present; lectins bind sugar groups such as chitin, which in fungal species binds to chitin in fungal walls and slows sungal growth. RIPs or ribosome inactivating proteins disrups viral replication by deactivating the plants ribosomes, therefore preventing cell replication and therefore also the viral pathogens replication. Hydrolases are present which break down the components of the pathogens and enzyme inhibitors inhibit enzymes which are used by the pathogen in the infection
Since all sorts of gender inequality continues to exist today, and some of the people and institutions that perpetuate the inequality appear unwilling to change, the contemporary family structure could be the starting point to remedy gender inequality in
Obtaining gender equality has been a constant struggle in the United States. Society in America naturally treats men and women differently, with no regard to equity. Consequently, gender inequality is repeatedly taken for granted, whether in the workforce or in the home. It is considered not only an expected social response, but one that is a basic component of social relations. The contemporary family structure is the most fundamental arena where gender inequality and equality are produced and reproduced. It is a central place where children are first taught gender roles and where influential associations built around gender are introduced. Since all sorts of gender inequality continues to exist today, and some of the people and institutions that perpetuate the inequality appear unwilling to change, the contemporary family structure could be the starting point to remedy gender inequality in the United States today, yet this does not occur. Thus, family structure is primarily constrained today by the continuation of gender inequality in society. Gender inequality may well be one of the greatest puzzles of modern society in the United States. We know that males and females are biologically different from the moment of conception and that these differences determine an individual's sex. Individuals' chromosomal and hormonal differences are what physically construct the male and
Does divorce have a huge impact on children?
Does divorce have a huge impact on children? Shirley C. 5380134 Does divorce have a huge impact on children? Put yourself in the shoes of a child that is encountering the separation of their parents. As a child they have to go through the pressure of which parent to choose and confusion of why their parents are not together anymore. Later on the stress can eventually lead them to put all the blame on themselves. Many think the husband and wife are the people being affected by this situation. But what we do not expect is that the children will consequently get affected by the separation of their parents. Most people might believe it is better to divorce than to torture oneself in a failed marriage. Divorce can be a healthy decision for a fail marriage; however this will remain as a traumatic memory for the children. I agree the children do get a huge impact from the divorce. This essay will provide information of how the children can be affected and how the problem can be accessed. Before entering how this issue stress outs the children, the brighter side should be brought out. Divorce is not always necessarily bad. Imagine a family with parents that argue all the time or a family with abusive problem, the result of divorce can be a relief for the children. Hetherington stated if the family is already in a critical condition, it would be a better solution for
