Biology Essays Examples For College & High School Students in PDF

10822 total results

A Study of the Factors Affecting the Fertilization of Arbacia Punctulata (1505 words, 7 pages)

AbstractFor this experiment, the percentage of Arbacia punctulata (sea urchin) egg fertilization was compared under a control treatment of 8.3 pH and a variable treatment of 7.8 pH. The prediction was that A. punctulata fertilization would thrive more until its control treatment of 8.3 pH than its variable treatment of ... Read More

A History of the Evolution of Prosthetics (2889 words, 13 pages)

Prosthetics for DummiesProsthetics have withstood the test of time as they have been around for thousands of years. Innovation, technological breakthroughs and science has allowed humans to evolve the field of prosthetics. But a common trend has kept prosthetics from their true potential of reaching amputees around the world, of ... Read More

An Illustration on the Processes in the Peripheral Nervous System (3619 words, 11 pages)

This is a very crude illustration of what goes on in the peripheral nervous system, which this lecture is going to concentrate on. In a peripheral nerve, on screen is a cross section of a mixed sensory and motor nerve, you have an afferent nerve fibre, so the nerve may ... Read More

Ethical Dangers of Genetic Engineering (1859 words, 7 pages)

Ethical Dangers of Genetic Engineering Research professor at the Institute for World Religions in Berkeley,Ron Epstein, attempts to both persuade against and inform his readers ofthe potential dangers associated with experimentation in geneticengineering in his article, "Ethical Dangers of Genetic Engineering."Epstein presents his argument in vocabulary that the average reader ... Read More

The Function of the Enzyme and How It Affects Our Chances for Survival (1031 words, 2 pages)

The Enzyme FunctionThe Cell it hosts many functions within our body and there can also be chemical reactions within our body and other living bodies so that there may be a function. Though what are these functions and how do they affect the way we as people act and survive? ... Read More

The Role of Neurotransmitters in the Human Body (553 words, 3 pages)

Neurotransmitters play an imperative role in the human body. They allow the neuron to do its job of transferring information throughout the body, whether it be to move muscular or skeletal organs, or to intake information received from one of the five senses. To understand how neurotransmitters play an important ... Read More

A Lab on the Use of Indicators to Determine Which Organisms Neutralize Acid (858 words, 2 pages)

The main purpose of this lab was to learn how to use indicators in our experiments. We did so by finding out which organism will neutralize the acid. This ties back to what we are learning about in class as we are learning how scientists have tried to hypothesize where ... Read More

A Lab on the Parts and Functions of a Prokaryote and the Creation of a Model Prokaryote (937 words, 3 pages)

The main purpose of this lab was to demonstrate the parts and functions of a prokaryote, then use our knowledge to create a model prokaryote that we can learn from. We learned how prokaryotes are very small, unicellular cells, that do not have a nucleus. This connects to the prokaryotes ... Read More

A Study on the Gene, Peroxisome Proliferator-Activated Receptor Gamma (PPARG) (2413 words, 8 pages)

The gene studied is peroxisome proliferator-activated receptor gamma (PPARG). This gene produces a protein of the same name, which acts as a transcription factor. PPARG is involved in multiple different processes in the body, like lipid metabolism, adipocyte differentiation, and inflammation. Inflammation is vital to this paper. Thiazolidinediones (TZDs) are ... Read More

The Characteristics of DNA and the Use of the Model of DNA Structure in Classrooms (601 words, 2 pages)

DNA, or Deoxyribonucleic acid, is two self replicating biopolymer strands that contain biological information that is necessary for human life. DNA is what allowed us to develop from single cell organisms to the trillions of cells that we have in our bodies today. DNA keeps us alive and in homeostasis ... Read More

An Anatomy Lab Report: Sketching Internal Organs of Animalia Specimens (412 words, 3 pages)

I. Anatomy LabII. Biology, Peter H. Raven, George B. Johnson, Jonathan B. Losos, SusanSingerInvestigating Biology, J. Morgan and M. E. Carter, 1993, pp 642-644III. Unlike our previous labs, this lab did not intend for us to improveour field observations by sketching samples readily available in nature.Instead, we took the time ... Read More

A Cellular Biology Lab Report: Sketching Cells from Plant and Animal Samples (323 words, 2 pages)

I. Cellular BiologyII. Biology, Peter H. Raven, George B. Johnson, Jonathan B. Losos, SusanSingerInvestigating Biology, J. Morgan and M. E. Carter, 1993, pp 642-644Due Sept 22, 2006III. This lab intended us to improve our microscopic observations bysketching cells from plant and animal samples. It is important for us tolearn how ... Read More

A Lab Report: Isolating Escherichia Coli and the Effects of Restriction Enzymes (898 words, 7 pages)

Over a two week period, a series of experiments took place where theplasmid DNA from Escherichia Coli bacteria was extracted, purified, anddigested with restriction enzymes. A plasmid is a circular,extrachromasomal molecule of double stranded DNA found in bacterial cells.Their autonomously replication and antibiotic resistance makes themexceptional candidates for DNA vectors. ... Read More

A Lab Report: Evolution and the Hardy-Weinberg Principle (760 words, 4 pages)

I. The Hardy-Weinberg LawII. Biology, Peter H. Raven, George B. Johnson, Jonathan B. Losos, SusanSingerInvestigating Biology, J. Morgan and M. E. Carter, 1993, pp 642-644III. This lab is meant to reflect a critical part of biology evolution.The combined laws of Hardy and Weinberg complete the equilibrium theorem weuse to understand ... Read More

A Lab Report on Crab Preparation and Prey Selectivity (611 words, 3 pages)

Crab Preparation and Prey SelectivityIntroduction The purpose of this lab was to observe the feeding behavior of a typeof crab and determine what factors most influence the size of prey the crabselects. It is simple to tabulate the number and size of the crab's prey,but it is much more difficult ... Read More

A Lab on the Development and Growth Patterns of the Kalanchoe Plantlet (963 words, 6 pages)

Abstract The purpose of this lab is to observe the development and growthpatterns of the plantlet, Kalanchoe at varying concentrations of differentgrowth hormones over a period of two weeks. Furthermore, we will analyzeone of three unknown hormones along with the other in an attempt todetermine its true identity. This task ... Read More

Synthesizing Proteins to Match the Nephila Clavipes MaSp1 (spidroin1) Complementary DNA Using Plants as a Surrogate for Silk Production (1970 words, 10 pages)

The naturally produced silk from most capable insects is celebratedfor its unusual tensile strength and mechanical properties. Most spiderspecies are associated with this craft and their silk is sought after forits industrial and pharmaceutical applications. However, the spider'slimited size will restrict any potential silk harvest and impede importantresearch. By transforming ... Read More

A Lab Experiment Report: Bacteria and Protista Lab (635 words, 3 pages)

I. Bacteria and Protista LabII. Biology, Peter H. Raven, George B. Johnson, Jonathan B. Losos, SusanSingerInvestigating Biology, J. Morgan and M. E. Carter, 1993, pp 642-644Wikipedia, the Free Encyclopedia, httpen.wikipedia.orgwiki.Due Feb 10, 2006III. This lab intended to reinforce our knowledge of the cultivating andrestraining properties of certain substances. We were ... Read More

Research on Using Fungus as a Weapon Against Malaria (360 words, 2 pages)

Fungi vs. MalariaFungus 'may help malaria fight'BBC Newshttpnews.bbc.co.uk1hihealth4074212.stmMycologists have recently observed an astounding property of a particularfungus. Beauveria bassiana spores are now known to attack mosquitoes andkill them from the inside. Scientists are using this knowledge to develop apowerful weapon against malaria. Malaria is a disease common to Sub-Saharan Africa ... Read More

The GMO and Biotechnology Debate (475 words, 1 pages)

The GMO and Biotechnology DebateThe debate on GMOs has been going on for years, and each side has its own valid points to be made on the matter. According to the ISAAA (International Service for the Acquisition of Agri-biotech Applications), genetically modifying plants is good for the world economy. Bhagirath ... Read More

The Essential Role of Epinephrine in the Human Body (483 words, 2 pages)

Epinephrine (also called adrenaline) is a hormone secreted from the adrenal glands, and is released in response to stress, which essentially is used to mobilize glucose so that it can be converted into energy to combat whatever stress is present in the environment. In primitive humans, this was used often ... Read More

The Importance of Keeping a Clean Environment All the Time (559 words, 3 pages)

Although we may not see them, bacteria are residing everywhere insideof our homes, and even in our bodies. If no one had discovered bacteria,people would constantly be getting sick because of the excess bacterialurking everywhere and no one would know to eliminate them. If the bacteriahave the proper conditions they ... Read More

The Important Role of Neurons in Proper Brain Activity (1744 words, 6 pages)

It is a known fact that atoms are the basic building blocks of all matter on Earth. They were believed to be the smallest particle of matter but this was disproven when the discovery of smaller parts being found within an atom called protons, neutrons, and electrons. These are the ... Read More

An Essay Studying the Wear and Tear Theory (714 words, 2 pages)

Research on the Wear and Tear Theory I chose to look up a paper about the wear and tear aging process theory. Basically this theory is saying that if you use a muscle or body part too much over time that part will stop functioning and become unusable. This is ... Read More

A Study on the Effects of the Predisposition of Genes on the Aggressive Behavior of Male (1585 words, 6 pages)

Are some men more aggressive than others? Could it be due to a predisposition in their genes? Additional or missing sex-chromosomes are said to have an impact on behaviors and characteristics of the individuals to which they belong. Scientists have spent over the past 50 years conducting studies to test ... Read More

The False Use of Embryology by Evolutionists (983 words, 3 pages)

The use of embryology by evolutionists to defend their beliefs isridiculous, not grounded in fact, and unfortunate. There are three mainfacets to the folly of these beliefs, and this paper will be entirelyrefuting the deceiving use of embryology to support evolution. The firstplace evolutionists go wrong is in accepting Haeckel's ... Read More

A Report on My Research on the Male Hormone Cycle (764 words, 2 pages)

Solo Research Report - Male Hormone CycleStarting out, it seemed like there was very little information available on the existence of a male hormonal cycle. Most of my beginning efforts brought me to articles about Irritable Male Syndrome (IMS), which is the effect of a males body having too low ... Read More

A Lab Experiment on Cell Membrane in Diffusion (488 words, 2 pages)

Diffusion is the movement of molecules from areas of greater concentration to areas of lesser concentration. In organisms, diffusion is limited by the selective permeability of the membrane that surrounds a cell. In this activity, you will study the diffusion of water molecules (osmosis) into and out of red onion ... Read More

The Importance of Hydrogen Bong in Biology (326 words, 2 pages)

A hydrogen bond is very important for biological concepts. It involves an interaction between a partial negative charge on one atom of a polar covalent bond with a partial positive charge on a hydrogen atom in a different polar covalent bond. A dashed line, found in water molecules containing two ... Read More

A Study on Synaptogenesis (1572 words, 8 pages)

The sensory and motor systems that compel the lives of organisms are governed by the synaptic connections made by neurons. Synaptogenesis, the generation of synapses between neurons in the nervous system, occurs during critical periods of development and continues even in the adult nervous systems. Pruning of excess synaptic connections ... Read More

Biology Essay Examples