Biology Essays Examples For College & High School Students in PDF

10822 total results

An Analysis of the Chemical Reactions and the Decomposition Process (839 words, 2 pages)

Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. From the work of many other chemists, we now have a ... Read More

An Analysis of the Chemical Plants and the Focus of Safety Concerns (230 words, 1 pages)

CHEMICAL PLANTS BECOME FOCUS OF SAFETY CONCERNBefore September eleventh, an out of town pilot named Mo boards an airplane and during his flight starts asking a lot of questions. He was mainly interested in a chemical plant that they had just flown over. What kind of chemicals are stored in ... Read More

An Analysis of the Concept of Raising a Substance for a Degree and the Use of the Temperature (252 words, 1 pages)

The amount of heat needed to raise a substance one degree in temperature is known as the specific heat of a substance. Once the specific heat of a substance is known it can be used to find various different facts, such as the change of heat that takes place during ... Read More

An Analysis of the Cerium Metal in Periodic Table (293 words, 1 pages)

Cerium is in the sixth period of the periodic table. Its atomic number is fifty-eight, which means it has fifty-eight protons and electrons. It has an atomic mass of 140.12, giving it eighty-two neutrons. Cerium is a soft, iron gray metal of the rare earth group of chemical elements, also ... Read More

An Analysis of the Development of the Cell Theory by Schleiden (272 words, 2 pages)

1. What observations were used to develop the cell theory?German botanist, Schleiden cells compose not only the stems and roots but every part of a plantGerman zoologist, Schwann - made same claim about animalsGerman physician, Virchow observed that cells come only from other cells2. What function do organelles serve?Eukaryotic cells ... Read More

An Overview of the Movement of Sucrose Across Plant Cell Membranes (581 words, 1 pages)

Movement of Sucrose Across Plant Cell MembranesThe cell membrane is a barrier between the internal and external environments of a cell. Water molecules are the sole molecules that can freely move across the cell membrane. This process is known as osmosis, and it is stated as being the net movement ... Read More

An Overview of the Cell membrane and Electron Transport Chain in Biochemical Pathway (663 words, 1 pages)

Cell Membrane Electron Transport Chain Biochemical Pathway1. The cell membrane structure is vital to the life of the cell. The cell membrane is shaped as having a phosphate head at the very outer surface, and two fatty acid tails hanging from it. The membrane is double, so at the tip ... Read More

A Study of a Human DNA (599 words, 1 pages)

A person gets all forty-six of their chromosomes from ones parents in a process called cell division. One very important event related to subsequent cell division does occur during interphase (period between the end of one division and the appearance of the next structural changes that indicate the beginning of ... Read More

The Process of Absorption of Food Nutrients in the Small Intestine (604 words, 1 pages)

The absorption of food nutrients through the small intestine is a condition known as celiac Sprue. The intestine is impaired because of an immune reaction to gluten which is a protein found in wheat or other grains that is in much food that people eat. Celiac sprue is generally reversible ... Read More

An Analysis of the Cytoplasmic Matrix as an Unstructured Liquid Gel (1284 words, 3 pages)

The cytoplasmic matrix is not an unstructured liquid gel as once was thought. The cytosol makes up some 50 of the cell volume. It contains numerous cytoskeletal elements, organelles, vesicles, metabolic enzymes and sometimes pigment deposits. The matrix coordinates the movement of intracellular organelles, and provides a framework for the ... Read More

An Analysis of the Element Carbon and the Availability in the Nature (1059 words, 2 pages)

Carbon, an element discovered before history itself, is one of the most abundant elements in the universe. It can be found in the sun, the stars, comets, and the atmospheres of most of planets. There are close to ten million known carbon compounds, many of thousands of which are vital ... Read More

A History and Study of CFC (1977 words, 4 pages)

In todays modern world of throw-away packaging, Styrofoam, and plastics, many manufacturers produce products, whether intentional or not, that are harmful to the environment. Chlorofluorocarbon is just one of those products. Created in the late 20s and believed to be harmless to the environment, chlorofluorocarbon was used in just about ... Read More

A Study on C-Fern (1324 words, 3 pages)

C-Fern LabInheritance of genes that code for the phenotypic color in CeratopterisIn this lab we took a green F1 diploid sporophyte population and allowed meiosis to occur to produce G2 haplolid gametophytes. Of the two cultures, Hybrid A gametophytes were produced in equal numbers of both mutants, while Hybrid B ... Read More

An Analysis of the Native and Exotic Plants Concept (955 words, 2 pages)

The word exotic has always called to mind visions of the fascinating, unusual, curious, sophisticated, and even the bizarre (Kramer, 19985). This term seems to allure people to investigate, comprehend, and even collect exotic paraphernalia-including plants. The phrase exotic plant does sound glamorous, but not to the native plants in ... Read More

An Analysis of the Creation of a Black Hole in Astronomic Research (828 words, 3 pages)

What happens if you fall into a black hole? Science fiction writers oftenspeculate on what could happen if you fall into a black hole. A common suggestion isthat if you fall into one you might fall into another region of space-time. This of courseraises great possibilities for space travel. Something ... Read More

A Research on Biological Warfare Against the United States (1653 words, 2 pages)

This paper is especially relevant today due to the fact that it may be one of the main reasons that our country is currently engaged in a war with Iraq. One of the deciding factors in declaring war was the fact that the United States believes Iraq was in possession ... Read More

An Agricultural View on Biotechnology (1278 words, 2 pages)

Biotechnology An Arigcultural ViewBiotechnology has dramatically changed modern society and will continue to as technology becomes more advanced. The idea of genetically modified plants and food has stirred both questions and concerns from both sides of the issue. However biotechnology can be responsible for many prominent advances in Agriculture. For ... Read More

A Research on Biotechnology and the Tweaking of Food Crops (619 words, 1 pages)

The scientific rules of genetics were not known until the nineteenth century, when Gregor Mendel determined from his study of plants that particles that can not be seen carry traits that are passed on from generation to generation. In 1953, James Watson and Francis Crick made the makeup of the ... Read More

An Essay on the Controversies Surrounding Genetic Modification (301 words, 1 pages)

Biotechnology manipulates one gene at a time, which controls the precision to agriculture. It also enables the researchers to create organisms that have genes they would not normally have. The controversy is similar to that of GM products. Some people feel that the reason to boycott GM foods is practical- ... Read More

An Analysis of the Bioluciferase and the Overview of the Luciferin and Luciferase Mixture in Chemistry Experiment (1940 words, 3 pages)

Bioluciferase, with no presence of mitochondria, is highly reactive among ATP, but altering pH levels results in denaturingBy measuring how different reagents affect the luciferin and luciferase mixture, called lantern, we will show the importance of the energy contained in ATP as well as other reagents like ADP and GTP. ... Read More

An Essay on the Use of Biological and Chemical Warfare (666 words, 1 pages)

Biological and Chemical warfare is one of the most dreaded forms of attack on the battlefield. We have used technology to save many lives by curing diseases and vaccinating against viruses, but it seems that whenever we have a breakthrough in science, there is an ever-present danger of a form ... Read More

A Study of the Biological Clock (1025 words, 2 pages)

All plants and animals have endogeous cycles that, in response to an outside rhythm (zeitgeber), will cue various actions. For example, bears know they must hibernate, poinsettias know they must flower and humans know they need sleep. In correspondence with a particular season, length of day, and light intensity respectively, ... Read More

A Research on the Ideology of IQ Tests and Biological Determinism (500 words, 1 pages)

The ideology of biological determinism has often been misconstrued by scholars, scientists, philosophers, and the average uninformed individual. As time goes on, the understanding of biological determinism gets better and better. Richard Lewontin does an excellent job in presenting examples of ideology of biological determinism in his book It Aint ... Read More

An Overview of the Biological Clocks and Internal Molecular Machines (364 words, 1 pages)

Biological clocks, internal molecular machines that keep track of time within organisms, and circadian rhythms, which keep track of the 24-hour cycle of day and night and light and dark, both enable organisms to adapt their behavior according to the most suitable conditions. There are many selective advantages that go ... Read More

A Report on the Horrors of Biological and Chemical Warfare (1310 words, 3 pages)

Biological and chemical warfare is terrible. No form of war is good, but this kills so many innocent people every time it is used that it shouldn't be used at all. Biological and chemical warfare is defined as a method of warfare in which toxic or incapacitating chemicals or biological ... Read More

A Report on Bioinformatics and the Human Genome Project (2806 words, 6 pages)

Bioinformatics and the Human Genome ProjectBioinformatics is the combination of life sciences and technology, especially in the field of electronic data basing. These databases consist of the human genome, the protein sequence and many others. Using this technology makes it easy for scientists to compare different DNA, and also help ... Read More

A Study of Biochemistry (943 words, 1 pages)

Biochemistry is about life at the molecular level. Biochemists have the ability to work in many fields and look into life from the view of the molecule. Diabetes is very common among people and is not a major problem now but will be in the next century or so. Diabetes ... Read More

The Potential of Bioethics and Genetic Engineering (2864 words, 6 pages)

Bio-ethics and Genetic EngineeringIt is my belief that genetic engineering has promise to better mankind, and it is our ethical obligation to research it but not exploit it. There is a need to have a morally correct legislation that guides the way science develops this.The Random House Websters College Dictionary ... Read More

An Overview of the Effects of Enzyme and Substrate Concentration, Temperature and pH on Catecholase Activity (1367 words, 3 pages)

The effects of enzyme and substrate concentration, temperature and pH on catecholase activity were determined in this experiment. To attain these results, potato extract (Solanum tuberosum) was mixed with catechol and exposed to different environmental conditions, then placed in a spectrophotometer to measure and record the different absorbance readings at ... Read More

The Origin of the Universe (1156 words, 2 pages)

It is always a mystery about how the universe began, whether if and when it will end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models Big Bang and Steady State. However, through many observational evidences, the Big Bang theory can ... Read More

Biology Essay Examples