Biology Essays Examples For College & High School Students in PDF

10822 total results

An Analysis of the Conversion of Chemical Energy to Electrical Energy in Fuel Cells (400 words, 1 pages)

Fuel cells are not constrained by the maximum Carnot cycle efficiency as combustion engines are. Consequently, they can have very high efficiencies in converting chemical energy to electrical energy. See the talk page for a discussion.In the archetypal example of a hydrogenoxygen proton-exchange membrane (or "polymer electrolyte") fuel cell (PEMFC), ... Read More

An Analysis of Experiments and Theories in Measuring Acceleration (252 words, 1 pages)

The purpose of this experiment is to measure acceleration on a freely falling object assuming the only force acting on the object is gravitational force.TheoryAll dense objects in free fall have the same acceleration, which is known as the acceleration due to gravity. The value of acceleration due to gravity ... Read More

An Analysis of Scientific Knowledge About Founder Mutations in Genetics (863 words, 1 pages)

Scientific knowledge about founder mutations is becoming broader. While founder mutations set themselves apart from other mutations science is coming closer in being able to prevent and diagnose certain diseases caused by these mutations. In order to gain an understanding of founder mutations one must know how mutations develop. Changes ... Read More

The Purpose of a Crime Scene Investigation (2915 words, 3 pages)

forensic science The word Forensic comes from the Latin forensus, meaning of the forum.1 In ancient Rome, the forum was where lawmaking debates were held, but it was also where trials were held just like modern day courthouses. From that, forensic science has come to mean the application of the ... Read More

A Research on Cloning (1680 words, 2 pages)

Cloning, is it the thing of the future? Or is it a start of a newgeneration? To some, cloning could give back a life. A life of fun, happiness,and freedom. For others it could mean destruction, evil, or power. Throughoutthis paper, you the reader, should get a better concept of ... Read More

An Essay on the Extraction of the Enzyme Tyrosinase (377 words, 1 pages)

The enzyme tyrosinase was successively extracted by combining a homogenate of a potato and sodium sulfate with ammonium sulfate. Tyrosinase was successfully extracted by taking advantage of solubility properties of certain proteins. A standard curve was generated indicating dopachrome absorbance values through the use of a spectrophotometer and a computer ... Read More

An Analysis of Drosophila (669 words, 1 pages)

Drosophila Lab I. IntroductionDrosophila is a model organism for genetics experiments because it reproduces quickly and when it reproduces it reproduces in large quantities. Also it is a model organism because so much is already known about it. The Drosophila egg is about half a millimeter long. One day after ... Read More

An Analysis of the Theories and Works of Albert Einstein (1797 words, 2 pages)

In 1916, Albert Einstein made up his General Theory of Relativity without thinking of a cosmological constant. The view of that time was that the Universe had to be static. Yet, when he tried to model such an universe, he realized he cannot do it unless either he considers a ... Read More

The Method of DNA Fingerprinting (536 words, 1 pages)

DNA FingerprintsLike the fingerprints that came into use by detectives and police labs during the 1930s, each person has a unique DNA fingerprint. Unlike a conventional fingerprint that occurs only on the fingertips and can be altered by surgery, a DNA fingerprint is the same for every cell, tissue, and ... Read More

Facts About DNA Strands (542 words, 1 pages)

Because the original DNA strands are complementary and run antiparallel, only one new strand can begin at the 3' end of the template DNA and grow continuously as the point of replication (the replication fork) moves along the template DNA. The other strand must grow in the opposite direction because ... Read More

The Significant Scientific Contributions of Rene Descartes and Sir Isaac Newton (363 words, 1 pages)

Descartes and Newton The old saying "great minds think alike" is not just an old saying. It was at least partially true concerning the minds of Rene Descartes and Isaac Newton. The significant scientific contributions of each man share some common concepts and methodologies, but they generally explored different topics ... Read More

A Report on Dark Matter and Its Existence (283 words, 1 pages)

For quite some time now, scientists have suspected that invisible stuff, known as dark matter, hold galaxies together as they move throughout space. But, no one has been able to see the dark matter, meaning they have yet to prove that dark matter actually exists.Though recently, astronomers saw two clusters ... Read More

An Analysis of Evolution and Selection of Trichromatic Vision in Primates (799 words, 2 pages)

Evolution and selection of trichromaticvision in primatesAlison K. Surridge1, Daniel Osorio2 and Nicholas I. Mundy31School of Biological Sciences, University of East Anglia, Norwich, UK NR4 7TJ2Biological Sciences, University of Sussex, Brighton, UK BN1 9QG3Department of Zoology, University of Cambridge, Cambridge, UK CB2 3EJTrichromatic colour vision is of considerable importanceto primates ... Read More

An Argument Stating the Immorality of Human Cloning (599 words, 1 pages)

Many arguments have been brought forth against cloning. Some have put forth valid arguments stating the immorality of cloning. Others just get bad vibes when it comes to the idea of cloning humans. Still others use the religion argument saying it goes against God's intention. These arguments are well founded ... Read More

An Analysis of Civil Engineering as One of the Oldest of the Main Branches of Engineering (552 words, 1 pages)

Steve Klehfoth12901CIVIL ENGINEERINGCivil engineering is the oldest of the main branches of engineering. Civil engineers use their knowledge to supervise and plan construction projects such as roads, airports, bridges, canals, tunnels, and wastewater systems. They also collaborate with architects to design and construct various types of buildings. Some other civil ... Read More

A Genuine Case of Human Chimeras (2432 words, 3 pages)

Human chimeras were once thought to be so rare as to be just a curiosity.But there's a little bit of someone else in all of us, says ClaireAinsworth, and sometimes much more...EXPLAIN this. You are a doctor and one of your patients, a 52-year- oldwoman, comes to see you, very ... Read More

An Analysis of the Description of the Solubility Curve of KNO3 (456 words, 1 pages)

Question What is the solubility curve of KNO3Prediction Draw a sketch to show the shape of the curve you expect for the solubility of a typical solid dissolving in water at different temperatures. Plot solubility on the y-axis and temperature on the x-axis. Materials Large test tubeBalanceStirring wireTwo-hole stopper to ... Read More

An Analysis to Understand How Single Displacement and Double Displacement Theories Apply To Real Life Situations (234 words, 1 pages)

Purpose To understand how single displacement and double displacement theories apply to real life situations. Procedure See Pg. 244-245. Observations Experiment Results a)sodium chloride silver nitrate milkybluewhite later turned gray b)silver nitrate potassium iodide whiteyellow(clear well) bluegreen(black well) c)iron(III) chloride sodium hydroxide Apple Juice Yellow d)sodium chloride potassium nitrate No ... Read More

An Analysis of the Description of DNA, Chromosome, Gene and Genome, All Terms That Refer to Aspects of the Inheritance Development and Reproduction of Organisms (730 words, 1 pages)

)-DNA, chromosome, gene and genome are all terms that refer to aspects of the inheritance, development and reproduction of organisms.-A gene is a specific sequence of bases that contains instructions for making proteins, and can be located in the DNA of an organism's genome. Compared to "genome,chromosome and DNA," a ... Read More

Assessing the Relationship Between the Centripetal Motion of an Object and the Radius (298 words, 1 pages)

Centripetal MotionPurpose The purpose of this lab was to test the relationship between the force of an object in centripetal motion and the radius. We further will test in this experiment the relationship between the force and the weight acting on the object. From this we will be able to ... Read More

A Description of an Enzyme as a Tertiary Globular Protein (1239 words, 2 pages)

An enzyme is a tertiary globular protein. The function of an enzyme is to lower the activation energy of either the creation or breaking apart of a chemical bond. By lowering the activation energy of this process, the reaction of bonding, or in this case breaking apart, is sped up. ... Read More

The Four Steps of the Osmosis Procedure With an Egg (465 words, 1 pages)

Introduction During the begging of the week we were assign a project. It was about Osmosis procedure with an egg. We were instructed to use four steps. First, we had to weight the egg. After weighting the egg we recorded it in our data chart. Then when we receive a ... Read More

An Overview of the Anti-Matter in Contrast to Matter in the Geneva’s Research CERN (1202 words, 2 pages)

Anti-MatterOrdinary matter has negatively charged electrons circling a positively charged nuclei. Anti-matter has positively charged electrons - positrons - orbiting a nuclei with a negative charge - anti-protons. Only anti-protons and positrons are able to be produced at this time, but scientists in Switzerland have begun a series of experiments ... Read More

An Analysis of Cells Structure on Animals (417 words, 1 pages)

My cell is the animal cell It really depends on which cell you are talking about - different cells do different things. Such as skin cells. They form a barrier on the outside of the body which protects the organs and tissues inside. It stops them getting damaged by bumps ... Read More

A Description of the Several Ways of Packaging Hydrogen (428 words, 1 pages)

Hydrogen can be "packaged" in several ways, as a fuel gas in a H202 powered engine or the newly devised solid state pellet of hydrogen isotopes that contains about the equivalent of 5000 cubic feet of hydrogen and is broken down and releases gas into the second chamber where it ... Read More

An Analysis of Constant Search For Energy Since the Dawn of Existence (937 words, 1 pages)

Man has been in a constant search for energy since the dawn of existence. Now, after thousands of years, he has turned his ingenuity, finally, to the least exhaustible, most plentiful, and almost infinite source of sustainment, the sun. The sun creates energy via thermonuclear fusion reactions and it may ... Read More

An Introduction to Parts of the Brain (375 words, 1 pages)

Forebrain- the anterior of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain that includes especially the cerebral hemispheres, vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functionsCerebrum- The largest portion of the ... Read More

A Coursework on Burning Alcohol in the Air (2180 words, 3 pages)

GCSE Chemistry - Alcohols CourseworkPlanningThis investigation involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic, homologous compounds, with the general formula Cn H2n1OH". The alcohol reacts with the oxygen in the air to form the products water ... Read More

An Analysis of the Akroyd Engine Lab Report (915 words, 1 pages)

Akroyd Engine Lab Report How does it work?The Akroyd Engine uses the Otto cycle, hence consist of induction, compression, expansion and exhaustion. Starting with the piston at top dead centre (TDC), the piston moves downwards and increased the volume inside the cylinder in the process reducing the pressure. This occurs ... Read More

An Analysis of the Addition of Force Vectors (299 words, 1 pages)

Addition of Force VectorsAbstractThe purpose, of this experiment, was to prove that there is a relation between the magnitude of the resulting vector, and the angle between the vectors that are being added. The test was performed by creating a balance between three weights tied to strings on a pulley ... Read More

Biology Essay Examples