- Discover essay samples

Surface Area To Volume Ratios In Plants (Arid Vs. Moist Environments)

4.9 of 5.0 (183 reviews)

586 words
Science & Nature

Surface Area To Volume Ratios In Plants (Arid Vs. Moist Environments) Page 1
Surface Area To Volume Ratios In Plants (Arid Vs. Moist Environments) Page 2
Surface Area To Volume Ratios In Plants (Arid Vs. Moist Environments) Page 3
The above thumbnails are of reduced quality. To view the work in full quality, click download.

Surface Area to Volume Ratios in Plants (Arid vs. Moist Environments)
The ability of plants to survive in certain environments depends on many abiotic factors such as the amount of water or light available. It is important to look at how these factors affect the growth and survival of plants in order to determine their future success. In today's day and age, with the environment under constant pressures such as pollution and global warming it is crucial to investigate aspects such as how much water loss or water intake a plant can withstand. A plant in an area with large amounts of precipitation for example, is expected to have a high surface area to volume ratio. If weather patterns were to suddenly change due to a global warming trend, how would this affect the plant's growth and ability to photosynthesize? These are the questions that lie at the basis of the following experiment.
To determine how the presence or absence of water in the environment affects the surface area to volume ratios in plants. It is observed that plants in moist environments have more lush, larger foliage, while plants inhabiting desert conditions are generally smaller and have less photosynthetic surface areas.


Alternative Hypothesis: states the hypothesis being tested in this experiment. Photosynthetic structures of plants adapted to arid environments have a lower surface area to volume ratio than plants adapted to less dry or moist environments.
Null hypothesis: there are no differences between the wet and dry habitat plants and observed differences are purely a result of chance. The null hypothesis is formulated to be rejected.


The methods used to gather data for this experiment were fairly simple. Three plants from an arid environment and three from a moist environment were gathered randomly from the UCLA botany garden. Three photosynthetic structures from each plant were then chosen to be measured. If the stems along with leaves were photosynthetic they too were measured. The length, width, and height of each structure was then recorded in order to use for later calculations.

Statistics Method:

After gathering the data, using the dimensions measured, each group calculated the surface areas and volumes of their plants. Four groups, each with three plants gave a total of twelve plants from each environment. This is important for sample sizes lower than six or eight are not useful for statistical purposes. Then the sample mean was calculated for the data in each category. The variances were then calculated in order to determine which t-test would be used to analyze the data. It was found that the Fs value was greater than the Fcritical value and therefore the null hypothesis was rejected. After performing the Ftest and determining that the variances were assumed unequal, the Ttest was then used in order to verify that there is indeed a difference in surface area to volume ratios of plants in wet and dry habitats. This was done by first calculating the degrees of freedom and then looking at the given table and comparing the t value calculated with the t-critical value.


(Calculations and statistics shown on attached sheet of paper)


As seen from the calculations, the t-value for this experiment was larger than the t-critical value for an alpha of 0.05. This immediately shows that there is indeed a difference between the surface area to volume ratios of plants ...

You are currently seeing 50% of this paper.

You're seeing 586 words of 1172.

Similar essays

PCR And Its Use

Often times, scientists only have a small amount of DNA to deal with when doing genetic research or studies. In these situations, scientists can do one of several things. One is to just try to work with it anyway, but this is nearly impossible (depending on how much there is). Ther are a couple other processes they can use, or they can use PCR....

65 reviews

A comet is generally considered to consist of a small, sharp nucleus embedded in a nebulous disk called the coma. American astronomer Fred L. Whipple proposed in 1949 that the nucleus, containing practically all the mass of the comet, is a 'dirty snowball' conglomerate of ices and dust. Major proofs of the snowball theory rest on various data. For...

177 reviews
Multiple Sclerosis

is a disease that bewilders us all.. There is no known cause. We do know that MS () is a disease where the myelin breaks down and is replaced by scar tissue. The demyelination can slow down or block the flow of signals to and from the central nervous system to the rest of the body, impairing such functions as vision, strength, and coordination....

85 reviews
Anthopleura Elegantissima

The sea anemones that were collected for the 'Clone Specific Segregation in the Sea Anemone ' experiment were collected by Lisbeth Francis in Pacific Grove, California (Biological Bulletin 1973, 144; 64-72). The topic of Francis's report is the particularity of the constant anemone-free areas dividing contiguous accumulations of these anemones and...

63 reviews
Effects Of Murcury On The Enviroment

LA Gear and other shoe companies have been using mercury to make the switch active in their shoe that light up when a person walks. The shoes should return to the company after the user is done with the to be recycled. Since LA never advertises this, people just thrown them away like any other pair of old shoes. Eventually the shoes end up in a...

108 reviews
Acupuncture 2

Acupuncture is a Chinese medical practice that treats illness and provides local anesthesia by the insertion of needles at predetermined sites of the body. Acupuncture may also follow many other forms. The word acupuncture comes from the Latin word acus, meaning needle, and pungere, meaning puncture. The Chinese call acupuncture Chen Chiu. On do...

27 reviews
Mercury Report

The magnificent planet Mercury is the planet I have chosen to research. I this report I have explained all there is to know about Mercury and its aura. The Romans gave Mercury its name after the fleet-footed messenger of the gods because it seemed to move quicker than any other planet. It is the closest planet to the Sun, and second smallest planet...

40 reviews
An End To Genetic Diseases

The United States has a very diverse heritage. There is no "American" race. Americans are the blending of many cultures throughout many generations. With this blending of cultures comes a blending of genes. In the past, genes have not been well understood. They were not understood until Mendel did experiments on plants to find out why differen...

32 reviews
Creation VS. Evolution

Ever since the publication of Charles Darwin's The Origin of Species was published, there has been an ongoing debate between science and religion. Scientists have formulated many theories as to the origins of man and to the creation of the earth, whereas religious groups have one main creation theory, based on the "Genesis" story of The Bible. Thes...

153 reviews
Avalanches And Landslides


67 reviews

Mars Climate Orbiter successfully blasted off a Kennedy Space Center launch pad for a 9-month journey to the Red Planet on Friday, December 11, 1998. The spacecraft will arrive in martian orbit in September 1999, where it will serve as a weather satellite for a full martian year (two full Earth years). The next Mars lander is scheduled for January...

201 reviews

DEVELOPMENT OF OVER THE DECADES A Computer is an electronic device that can receive a set of instructions, or program, and then carry out this program by performing calculations on numerical data or by compiling and correlating other forms of information. Thesis Statement:- The modern world of high technology could not have come about except for t...

37 reviews
Analysis On Electronic Data Imaging

DigiFile has been serving the Houston community since 1992. Originally a litigation support company, they evolved into a total solution service organization for electronic document management. They offer conversion services, both at their production facility and on-site, as well as open architecture data management solutions. While initially serv...

81 reviews

means the surroundings. Land, water, air, plants, animals, solid wastes and other things that are surrounding us constitute our environment. Man and environment are closely intertwined with each other, to maintain a balance or equilibrium in nature. Different groups of people working in different areas express it in various ways. When physical sc...

169 reviews
Atsisiųsti šį darbą