To Investigate Whether There Is A Difference In The Frequency Of Stomata Between Green And White Areas Of Leaves

2931 words - 12 pages

To investigate whether there is a difference in the frequency of stomata between green and white areas of leavesPlanPredictionI predict that there will be a higher stomatal frequency present in the green areas of the leaves as the green colour indicates the presence of chloroplasts containing chlorophyll, which are essential for the process of photosynthesis. In contrast, the white areas of the same species of plant do not contain chlorophyll, so it is evident that they do not take part in the photosynthesis, and therefore do not have a great need for gaseous exchange, so there is a lower stomatal frequency.I think that the frequency of stomata will also differ in different species of plant. For example, xerophytic plants such as cacti, that are adapted to living in very dry conditions, will have a lower stomatal frequency. This is mainly due to their immense need to conserve water and reduce water loss through transpiration, which involves water evaporating out of the stomata. Mesophytes, however, live in wetter conditions, and are not at risk when they transpire. Losing water through transpiration allows the movement of water up the xylem through cohesion. They have more stomata for gas exchange and losing water through transpiration does not pose too much of a threat as they do not need to conserve water.PlantsThe following plants will be used in the experiment:Geranium is a plant which can be found growing in Britain. It grows well in warm, sunny conditions but can cope when exposed to colder conditions.Chlorophtyum or spider plant is adapted to living in dry conditions. However, it can be found in many homes as a potted plant.Hedra or ivy is adapted to living in moderate to warm conditions and prefers a humid environment.Elaeagnus can survive in a variety of soil and moisture conditions. It can survive in quite dry soil.Ilex or holly is an evergreen plant which can survive in poor soil conditions. It can survive in both warm and cold conditions.Apparatus:Nail VarnishSticky tapeLeavesGlass slidesMicroscope (x400 magnification)MethodTake a leaf from each species of plant, and paint onto the lower epidermis four sections of clear nail varnish. The sections must be at least 1cm2 and there must be two areas of nail varnish on the green areas of the plant and two on the white areas.Allow the nail varnish to dry, then take a strip of sticky tape and put this over the section of nail varnish. Pull the sticky tape off, taking the stomata imprint with it.Place the sticky tape onto a slide so that the sticky side is facing upwards. Stick both ends of the tape to the slide to keep it in place. There must be four slides for each species of plant.View the slide under a x400 magnification microscope. Count the number of whole stomata in the field of view.Repeat the experiment for each species of plant.Risk assessmentDue to the possibility of an allergic reaction to some species of plants, hands must be washed after making contact with the leaves. It can...

Focussing on The Fiftieth Gate, a novel by Mark Baker, explain the difference between history and memory, and explain whether one is more valid than the other. Other support material included

1403 words - 6 pages represents the way in which memory is a personal record of history.These representations of the relationship between history and memory enable a clarified definition of the role of each in discovering the past. They show that, while neither method is foolproof, one cannot be looked at without the other, as a blend of subjectivity and objectivity is necessary in order to perceive the whole truth.History is imperative as societies record, and is

Explain Peter Singer’s argument that there is no morally significant difference between Bob, who decides to let a child die rather than sacrifice

859 words - 4 pages there is no reason to hold onto any more money than what is needed for basic living costs, and so we should all give away every last cent that we can. As a Utilitarian, Singer finds no morally relevant distinction between acts that contribute towards the deaths from poverty, and those omissions that do nothing to prevent such deaths. All that matters are the consequences. In a similar vein, Singer rejects the contention that one only is

The Effect of Stomata Density on the Midrib and Margin of Woody Dicot Leaves

985 words - 4 pages that there is no effect on the increase of stomata density within the center. The alternative hypothesis will conclude that there is an effect on the increase of stomata density within the center. METHODS In this experiment woody dicot leaves were used to determine the stomata density count within the leave margins and edges. In the first process the experimenter investigated the amount of fossil leaves to estimate the temperature from before

Determining Whether there is a Presence of Anti-Semitism in William Shakespeare's The Merchant of Venice

1363 words - 5 pages Determining Whether there is a Presence of Anti-Semitism in William Shakespeare's The Merchant of Venice It is quite clear when reading The Merchant of Venice that there is a large focus on Shylock being a Jew. This is very prominent in his "I am a Jew" speech he, the Jewish moneylender, angry and betrayed, rails against the non-Jewish world which torments him. Antonio "hath disgraced me, and hindered me half a million

To What Extent Does Migration Create A Balance Between Areas Of Overpopulation And Areas Of Underpopulation

1884 words - 8 pages Scotland, Wales, the Midlands and the North of England. Such a loss of manpower to the south-east has prevented many areas within these parts developing into more prosperous regions.It is virtually impossible for migration to create a balance between over and under population simple because of the rural to urban migratory trend in the world. In most LEDC's there is virtually no migration from an urban area to a rural area so how can the

Was Napoleon the son or the enemy of the French Revolution? In this essay, I will try and investigate whether Napoleon Bonaparte brought a positive change to France or was he just another tyrant

3273 words - 13 pages intelligent but obedient citizens, In establishing a corps of teachers, he said, with a candor unusual in governments, my principal aim is to secure the means for directing political and moral opinions...So long as one grows up without knowing whether to be republican or monarchist, Catholic or irreligious, the state will never form a nation; it will rest on vague and uncertain foundations; it will be constantly exposed to disorder and change

What evidence is there of interaction between the world of Fairies and the mortal world in 'A Midsummer Night's Dream?'

612 words - 2 pages The Fairies are not introduced until the second act of the play but there is a great deal of evidence within the first scene of Act two to suggest that they interact with the mortal world.During the time Shakespeare was writing people had superstitions about the natural world. People carried lucky charms, plants that were associated with magic and precious stones to protect themselves from evil or bad luck. People saw a clear link between what

Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid

2245 words - 9 pages think I have been successful in achieving my aim, as I have investigated a factor which affects rate of reaction between hydrochloric acid and magnesium ribbon. I have supported my prediction with my results and shown that there is a relationship between concentration of acid and rate of reaction. I consider my results to be as accurate as possible, as each experiment was done 4 times and an average taken form the 4 results. This increases

Is there a Correlation between Gender and the Choice of a College Major?

2730 words - 11 pages Have you ever wondered whether or not there was any correlation between gender and college major? We conducted a survey consisting of 105 people (51 males and 54 females) and of those people, 34.3% (17 males and 19 females) did not think that there was a direct correlation between the two. Our goal was to see if gender did in fact influence one’s choice of major, or if it had no influence at all. After proper surveying and thorough analysis of

Old Fashioned Education This is kind of a book report on the difference between education today, and the way it is explained in the authors essay

2184 words - 9 pages away, pregnant with the cold and pregnant with the shoes that were never bought for me, pregnant with five other people in my bed and no Daddy in the next room, and pregnant with hunger"(Gregory, 172). Gregory didn't do anything to deserve the treatment that he received from others. He was born into this world the same way all people are, but he came out a different person than the rest of us. Is he wrong to be different? He was treated cruelly

Power and Energy – There is a Difference?

1254 words - 5 pages is a difference. What is the difference? In this paper, I want to explain that in the world of physics power and energy do go hand in hand, but they're not the same thing. There is a difference, and there is an easy explanation. What is Energy? Energy is defined as effort; capacity for performing work; the resources for producing such power (Merriam-Webster 1999). Authors (Kilpatrick and Francis, 2010) wrote that “energy is one of

There Is An Evident Difference Between The Kind Of Work

916 words - 4 pages There is an evident difference between the kind of work marketing practitioner involved in everyday managerial decision making does and the work a marketing scientist is involved in. Whereas the first one is concerned with the optimization of a set of variables that may maximize a performance measure, the second attempts to generate scientific knowledge in marketing related issues.Most of the definitions of Science differ in depth or scope and

The Factors That Mark The Difference Between Poverty In Rural Areas And Metropolitan Areas

1234 words - 5 pages drug and alcohol abuse among adolescents. Sadly, time will only tell the effect the health issues during childhood which will present later on in adulthood for these children. Last to be examined is the difference in the family structure in rural areas. Single parent homes are prevalent along with non-marital cohabitations, and there is a correlation between these structures and economic disadvantages, and lack of educational opportunities for all

Is There A Significant Difference In Lung Cancer Rates Between Males And Females That Smoke

975 words - 4 pages Methods: My research question is, is there a significant difference in lung cancer rates between males and females. My variables were inspired by some phone call questions that I picked from the HINTS dataset there is a total of, in which all were made from a sample of the U.S. population, also two out of three questions were asked in a likert scale. One of the first questions was “ Have you ever smoked cigarettes everyday for at least six

Study: Is There A Difference Between Normally Developed Children And Children Diagnosed With Autism?

1243 words - 5 pages Discussion of Proposed Findings The first main purpose of this study will demonstrate a difference between normally developed children and children diagnosed with autism supporting the hypothesis that if autism affects task completion, then autistic children will have lower task completion than normally develop children. Results found in a study done by Jiang, Capistrano and Palm (2014), showed that children with autism had lower performance in