Biology Essays Examples For College & High School Students in PDF

10822 total results

Scientists Tries Hard to Locate the Gene for Cystic Fibrosis (2166 words, 13 pages)

Introduction Cystic fibrosis is an inherited autosomal recessive disease that exerts its main effects on the digestive system and the lungs. This disease is the most common genetic disorder amongst Caucasians. Cystic fibrosis affects about one in 2,500 people, with one in twenty five being a heterozygote. With the use ... Read More

Importance of Sodium Compounds That Holds Water in Body Tissues (382 words, 2 pages)

Life could not exist without compounds of sodium. These compounds hold water in body tissues, and a severe deficiency of sodium can cause death. Blood contains sodium compounds in solution. Sodium compounds are used in industry in the manufacture of chemicals and pharmaceuticals, in metallurgy, in sodium vapor lamps, and ... Read More

The Influence of Science Fiction to Its Readers to Visualize the Future World (1494 words, 7 pages)

society For more than half a century science fiction writers have thrilled and challenged readers with visions of the future and future worlds. These authors offered an insight into what they expected man, society, and life to be like at some future time. One such author, Ray Bradbury, utilized this ... Read More

An Investigation of Light’s Behavior When It Passes into an Optically Denser Medium (362 words, 3 pages)

Purpose To investigate the behavior of light when it passes from air into an optically denser medium.Prediction Hypothesis When the light (incident ray) passes from air into an optically denser medium with an angle of incidence equal to zero, there would be no refraction. When the light passes at an ... Read More

A Review on the Science and Practical Applications of Radiology (1878 words, 3 pages)

Humanity, constantly learning, growing, and facing more challenges each second of the day. Whether the challenges are mental or purely physical. We have found moreefficient, safer, and easier ways of doing the tasks we may face. From moving cargo, to sending information via the Internet. Probably the greatest accomplishments we ... Read More

A Description of Potassium an Important Element in the Human Body (639 words, 3 pages)

Potassium is a vital element in the human body. Potassium had never been distinguished between sodium until the eighteenth century. Before potassium was recognized as an element, potassium carbonate was mixed with animal fat to make soap. It was discovered by Sir Humphrey Davy in England, in 1807. Sir Davy ... Read More

Differences Between Natural and Synthetic Polymers (414 words, 2 pages)

Polymers are large molecules composed of smaller molecules called monomers. Monomers are produced and either grow together or are assembled to produce a single polymer. There are synthetic and natural polymers. Some examples of natural polymers would be wood, starches, fingernails, and hair. Synthetic polymers are usually referred to as ... Read More

The Importance of Phosphates in the Metabolism of Plants and Animals (866 words, 5 pages)

Phosphates may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary phosphates contain hydrogen and are acid salts. ... Read More

Understanding the Concept of Myers-Briggs Type Indicator Test (806 words, 1 pages)

The Myers-Briggs Type Indicator The Myers-Briggs Type Indicator Test measures personality according to eight traits, in twos. The first set of traits tested is introversion and extroversion. When taking this test, I scored twenty-two introversion points and only six extroversion points. According to the test, I am an introvert. This ... Read More

A Discussion About the Use of Nuclear Power (1964 words, 14 pages)

Nuclear energy by definition is the energyconsumed or produced in modifying thecomposition of the atomic nucleus. Nuclear energyis used for things such as atomic bombs, hydrogenbombs and other nuclear weapons. Nuclearenergy can also be used for poweringelectricity-generating plants all over the world.There are many arguments for and against nuclearpower. Nuclear ... Read More

The Effects of Mixing Various Levels of Acids and Bases (3597 words, 4 pages)

The sought to determine the effects of mixing various levels of acids and bases to see which combination would have the most explosive reaction, and measure the resulting pH levels. I did this by testing an assortment of different pH levels of acids and bases, mixing them together and measuring ... Read More

An Analysis of the Mitochondria and Chloroplast in an Organic Cell (560 words, 4 pages)

I. IntroductionOut of all the organelles thereare two that have fascinated microbiologists for the past hundred years. Thefirst is the mitochondria, nicknamed the "powerhouse of the cell." The secondis the chloroplast in plant cells that have functions similar to those of themitochondria. What do these organelles do? What are the ... Read More

Understanding How a Jet Aircraft Lifts Its Tremendous Weight off the Ground (508 words, 4 pages)

Have you everwondered how a jet aircraft lifts its tremendousweight off the ground, or what gives a runner thestamina to reach the finish line in a race? In orderto answer all these questions we must talk aboutthe transformation of one sort of energy intoanother. The jet aircraft gets its power ... Read More

Phases and Eclipses of the Moon (405 words, 2 pages)

Title Phases and Eclipses of the MoonPurpose The purpose of this lab is to demonstrate the different phases of the moon during its revolution around the earth and also to display solar and lunar eclipses.Hypothesis I think that by following the procedure, I will successfully complete this lab in showing ... Read More

A Biography of German Biologist Matthias Schleiden (283 words, 2 pages)

Matthias SchleidenMatthias Schleiden was a German Biologist and a mastermicoscopist. He lived from 1804 -1881. Schleiden was influenced bySchellings Naturphilosophie and the writings of Oken. He worked underJohannes sMuller and tudied primarily cells in plants. Schleidenobserved that all plants seem to be composed of cells. He is alsoconsidered the co-founder ... Read More

A Biography of Margaret Mead the Scientist, Explorer, Writer, and Teacher (333 words, 2 pages)

Margaret Mead was a great scientist, explorer, writer, and teacher, who educated the human race in many different ways. In the next few paragraphs I will discuss the different ways Margaret Mead, Anthropologist, affected our society. Margaret Mead was born in Philadelphia on December 16, 1901, and was educated at ... Read More

A Review of Margaret Jean’s “Isaac Newton: The Greatest Scientist of All Times” (316 words, 3 pages)

Isaac Newton was a brilliant scientist whodiscovered many important things. Thesources for this report are "MicrosoftEncarta '99 Interactive Encyclopedia" andthe book "Isaac Newton The GreatestScientist of All Time" by Margaret JeanAnderson.Sir Isaac Newton was born on December 25,1642 (according to the Julian calendarwhich was in use then the date wasJanuary ... Read More

An Overview of the Science News Regarding the Experiment of the Correlation Between a Virus and Psychological Distress (440 words, 2 pages)

Science News, March 27, 1999People who feel unable to deal with lifes stresses display an exaggerated immune reaction that may intensify their sneezing, soughing, and other physical symptoms once theyve contracted a common virus, a new study suggests.However, the researchers have not yet confirmed whether this particular immune response-a sharp ... Read More

An Overview of the Human Genome Project and the Argument from the Bible (1462 words, 4 pages)

GENOME PROJECTAdam and Eve were doomed for trying to be like god, this is the same damnation mankind is headed to. Everyones dream is to have absolute power and control of everything. The genome project and DNA engineering gives man the ability to create life and cuomize life to his ... Read More

An Analysis of the Application National Scenic trail (1041 words, 3 pages)

The Appalachian National Scenic Trail, is a footpath in the eastern United States for outdoor enthusiasts, extending about 2140 miles from Maine to Georgia, along the crest of the Appalachian Mountains. The trail passes through 14 states and is maintained by 34 different trail maintenance organizations. It is the longest ... Read More

An Overview of the Gregor Mendel’s Influence on the Genetic Research on the Plant Hybrids (579 words, 3 pages)

Gregor Mendel playeda huge role in the underlying principles of genetic inheritance. Gregor wasborn, July 22 1822 in Heinzendorf, Austrian Silesia (now known as Hyncice,Czech Republic), with the name Johann Mendel. He changed his name to Gregorin 1843. He grew up in an Augustinian brotherhood and he learned agriculturaltraining with ... Read More

Three Principles of Inheritance That Described the Transmission of Genetic Traits Developed by Gregor Mendel (639 words, 2 pages)

Gregor Mendel was born in Heinzendorff in 1822 and died in 1884. Ever since Mendel was a boy he was very interested in science. Whenever his friends would come back from school they would tell Mendel what they studied and he would be so excited. Mendel was so interested about ... Read More

An Hereditary Experiment to Determine the Inheritance Patterns of Fruit Flies (617 words, 2 pages)

IntroductionFrom simple heredity experiments with garden peas, to cloning sheep, the field of genetics has come a long way. Now we are closer to mapping out the human genetic map due to advances in technology, and years and years of research. Perhaps the most influential and groundbreaking scientist, Gregor Mendel, ... Read More

An Introduction to the Mitochondria and Its Inner and Outer Membrane (324 words, 2 pages)

The mitochondria has an eggshape structure. The mitochondria consists ofan inner and outer membrane. The outer membrane is what shapes theorganelle to its egglike shape. The inner membrane which folds inwardmakes a set of "shelves" or cristae that allow the reactions of themitochondria to take place. The more the mitochondria ... Read More

An Analysis of Structure of the Enzyme (1032 words, 4 pages)

The structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHscan alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this byputting stress and pressure on the bonds or creating a ... Read More

An Analysis of Dramatic Fluctuations of Devils Lake, North Dakota (9926 words, 16 pages)

Dramatic Fluctuations of Devils Lake, North DakotaClimate Connections and ForecastsConnely K. Baldwin and Upmanu LallUtah Water Research Laboratory, Utah State University, Logan, UT 84322-8200IntroductionThe recent (1992-date) record rise in the level of the Devils Lake, North Dakota, has led to a number of questions as to the nature of regional ... Read More

Causes of Depletion of the Ozone Layer (1048 words, 7 pages)

The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer?In 1970, Crutzen first ... Read More

An Analysis of Product of Scientific Cloning (620 words, 5 pages)

Imagine having a twin that looks and acts exactly like you. Even more interestingthis twin is a product of scientific cloning. If scientists have their way, identical replicasof human beings will be roaming the earth. This scientific vision may occur a lot morerecent then many think. Cloning can be (better) ... Read More

An Argument on the Effect of Reconstructing Electrical Power (1218 words, 4 pages)

Electricity is the principal force that powers modern society. It lights buildings and streets, runs computers and telephones, drives trains and subways, and operates all variety of motors and machines. Yet most people, despite their great dependence on electrical power, hardly give it a thought. They flip a switch, turn ... Read More

An Analysis of Science (891 words, 4 pages)

Many events were unexplainable and maybe even seemed to be magical beforescience evolved to what it is today. All questions relating to the originof life can be answered scientifically. The creation of the universe andall events since can be explained. One may question their beliefs basedon scientific theory. Human life ... Read More

Biology Essay Examples