Biology Essays Examples For College & High School Students in PDF

10822 total results

An Experiment Showing the Process of Digestion Using Protein and Pepsin (1483 words, 5 pages)

Representing Digestion in the Human Body by Observing Protein and PepsinPurposeThe purpose of this lab is to determine the optimum conditions for digestion in the stomach. This lab will focus on chemical digestion by gastric fluid, using pepsin and egg along with either an acid, a base, or a neutral ... Read More

A Lab Investigation on the Function, Structure, Food Source, Reproduction, Movement, and Classification of Protists (800 words, 2 pages)

Title An Investigation on the Function, Structure, and Classification of ProtistsPurposeThis lab was performed in order to educate the participants on protists, and helped further the class' knowledge of what occurs constantly on in a world smaller than can be seen with a naked eye. Classification, structure, food source, reproduction, ... Read More

The Effects of Human Sciences and Natural Sciences in the Way of Shared Knowledge Shaping Personal Knowledge (1681 words, 4 pages)

The Effects of Human Sciences and Natural Sciences in the Way Shared Knowledge Shapes Personal Knowledge. Shared knowledge and personal knowledge, although they may come from the same concept of acquiring them through a variety of situations, it differ on the process of gaining them. Thereupon, such approach is seen ... Read More

An Experiment to Examine the Effects of Genetic Drift and Selection Pressure to Allele Frequencies (1600 words, 6 pages)

AbstractIn this experiment we examined how genetic drift and selection pressure effected allele frequencies along with other factors like original population size and allele fitness. We used Python to examine allele frequencies in certain populations and run simulations over multiple generations. We found that genetic drift has a greater effect ... Read More

A Lab Experiment to Explore, Observe and Understand the Five Senses Humans Use in Our Everyday Life (4154 words, 17 pages)

AbstractThis lab allowed us to explore, observe, and obtain a better understanding of the five senses we use in our everyday life. In this lab we explored the different senses by conducting a total of ten types of experiments that allowed us to explore and test our sensory skills. This ... Read More

A Lab Experiment on the Different Stages of the Cell Cycle and Mitosis Using Aseptic Technique (1500 words, 5 pages)

IntroductionIn this lab we looked at cells that where exhibiting different stages of the cell cycle and mitosis using appropriate aseptic technique. The cell cycle refers to the development and reproductive process a cell goes through. According to The Biology Project by the University of Arizona the cell cycle is ... Read More

A Lab Experiment to Observe and Compare Organisms from Different Phylum (1397 words, 5 pages)

AbstractIn this lab, students observed organisms from different phylum, and compared them. They dissected specimens from different phylum, and compared and observed organ systems and overall body plans. Students were also able to create phylogenic tress and examine the classification of organisms first hand.IntroductionThe evolution of the Metazoan from unicellularcolonial ... Read More

A Lab Experiment on the Use of Exponential Growth, Logistic Growth, and Predator-Prey Population Equations to Create and Observe Population Models (2645 words, 10 pages)

AbstractThis lab used exponential growth, logistic growth, and predator-prey population equations to construct population models and observe how environment factors such as a carrying capacity and the rate of predation affects a populations growth rate. For the lab we used Microsoft Excel. The lab staff created a spread sheet with ... Read More

A Lab Experiment to Understand the Reproductive Structures and Functions of the Different Types of Plants (1340 words, 5 pages)

AppendixThis lab allowed us to familiarize ourselves with the types of plants along with gaining understanding of the reproductive structures and functions of them along with comparing and contrasting the characteristics of Monocots and Dicots. This lab also addressed the importance and function of specific tissues within plan cells.IntroductionThis lab ... Read More

An Experiment to Observe and Understand the Influence of Cytokines on Hematopoietic Stem Cell’s Differentiation (1188 words, 4 pages)

AbstractThe purpose of this lab was to allow the students to observe cytokines and how it influences hematopoietic stem cells differentiation. This lab allowed us to have a better understanding of how cytokines affect different cells and how to determine the different combinations of cytokines and their products. We observed ... Read More

An Experiment to Observe Chemotaxis in Neutrophils and the Substance That Inhibited It (1198 words, 6 pages)

AbstractIn this experiment we observed chemotaxis in neutrophils, and what substance inhibited it. Chemotaxis is essentially a migration of a cell towards a specific stimulus. Using sterile techniques, we performed an experiment that used a control media, IL-8 as a chemoattractant, and Cytochalasin D and Ly20094 as inhibitors. We expected ... Read More

Biodiversity: The Special Connection Between All Organisms on Our Planet (669 words, 4 pages)

The term biodiversity is used to refer to diverse kinds of organisms found in an area. This term encompasses animals, plants, fungi as well as other organisms. In essence, biodiversity covers all organisms from very tall plants to microscopic organisms that can only be perceived with the aid of powerful ... Read More

The Risks of Altering the Human Embryo Through the Technological Advancements of Humans (685 words, 3 pages)

Genetics is a scientific field of study that deals with analyzing the genome of organisms. A genome is the complete set of DNA including all the genes as well as the germ line which, is the sex cells that incorporates the egg and the sperms, which are used by sexually ... Read More

The Effects of Color on the Absorption of Light (854 words, 4 pages)

Colors Effect on The Absorption of LightThe electromagnetic spectrum ranges from radio waves to gamma rays, and found right in the center of the spectrum is visible light. Light is the only electromagnetic wave that can be seen by the naked eye. This type of electromagnetic radiation waves transport energy ... Read More

The Human Genome Project and Its Effects on the Scientific and Business World (690 words, 3 pages)

In every field of study known to man, there are always certain topics of controversy, the patenting of sections of the human genome is one such debateable topic. On one side, scientific discoveries should be the property of everyone, and on the other side the belief is that monetary gain ... Read More

An Experiment on the Effects of Molarity on Change of Mass of Potato Cell (955 words, 4 pages)

LAB REPORTTHEORYThe random movement of water molecules from a high water potential gradient (high concentration) to low potential gradient (low concentration) through partially permeable membrane is called osmosis. In osmosis, the solute cannot pass through the partially permeable membrane but the solvent can because it only allows certain material to ... Read More

A Study on the Effects of Classical Music or Any Other Type of Music on the Growth of Plants (733 words, 3 pages)

The effect of music on plants has been a reoccurring experiment among scientists. Music and vibrations of the music has been though to stimulate the seeds of plants and help the growth. Musical sound has a significant effect on the number of seeds sprouted compared to noise and untreated control ... Read More

A Research on the Structure and Role of the Sarcoplasmic Reticulum (SR) (1047 words, 6 pages)

INTRODUCTIONThe Sarcoplasmic reticulum (SR), is a membrane bound structure found within muscle cells, which is similar to the endoplasmic reticulum and constitutes the main intracellular calcium store in striated muscles. Smith and Wood (1996) define the sarcoplasmic reticulum as a system of accumulating calcium ions (Ca2) from the cytosol (sarcosol), ... Read More

The Miracle Offered by Stem Cell Research (1530 words, 5 pages)

As technology steadily evolves with the times, scientists make discoveries that people of the past would have never dreamed of. From self-driving cars to new vaccinations, new scientific discoveries constantly amaze us. One of the most impressive medical discoveries was the use of stem cells. In the 1980s, scientists developed ... Read More

The Themes of Social Hierarchy and Cultural in the Articles Life on a Medieval Barony and The Secret Life of Plants (359 words, 1 pages)

The articles Life on a mediaeval barony A picture of a typical feudal community in the thirteenth century and The Secret Life of Plants highlight the overarching theme of social hierarchy and culture. They do so by including facts, situations and examples, and their own rationale. It is with this ... Read More

The Importance of the Use of Bioluminescence in Deep Sea and Marine Life (576 words, 2 pages)

Bioluminescence is the term used to define the chemical that produces light energy within the body of an organism. For the reaction to take place organism must contain a molecule called luciferin, which then reacts with oxygen to produce light. According to scientists, there are different types of luciferin, and ... Read More

The Purpose and Function of the Respiratory System (685 words, 3 pages)

The Respiratory SystemOur body is made up of different systems. All of these systems collaborate together to make our human body function properly. Without all of these we wouldnt be able to go through life normally. If you take just one away, the whole body will cease to work properly. ... Read More

The Importance of Auxins in Plant Growth and Root Formation (360 words, 2 pages)

Auxins are very important plant hormones that control the plant growth and root formation it was the first plant hormone to be discovered. In the presence of the auxin hormone the cell elongates to promote upwards expansion of the plant. Auxins are also responsible for phototropism in plants which is ... Read More

A Review of Oligodendrocytes and Their Precursor, and the Possible Oligo-Protective Treatments Studied in Animals (6744 words, 18 pages)

Abstract Perinatal asphyxia is the major cause of neonatal death, one of fourneonatal deaths Worldwide (Lawn et al., 2007 Edwards et al., 2010).Infants who survive asphyxia can develop long-term neurological deficit orCerebral palsy. Severity of neurological sequelae including white matterdamage in the CNS, depend upon the extent of hypoxic exposure. ... Read More

The Amazing Regeneration of Starfish Limbs and Common Lizard Tail (2405 words, 8 pages)

Life on Earth is both prominent and extremely interesting, which is why fields like biology exist. In Biology, living systems, cells, evolution and organisms are studied. From these organisms there are few that belong to the animal kingdom and that have almost superhero-like capabilities. This special ability is most commonly ... Read More

A Study on the Relationship Between Basal Area and Mean Fern (1669 words, 8 pages)

AbstractThe Christmas Fern (Polystichum acrostichoides) is a spore-producing vascular plant commonly found in the temperate deciduous forest. It grows best in well-shaded areas with well-drained soil. Sunlight is essential for photosynthesis low light levels limit plant growth by limiting photosynthesis. As light levels increase, photosynthesis increases to a point until ... Read More

The Use and Ethics of Genetic Engineering (1253 words, 4 pages)

Ever since the first human genome, we have began to understand and even manipulate DNA. This has led to further scientific discovery, such as gene therapy and cloning. There have been opposing views over whether it is ethical to approach genetic engineering. I believe that genetic engineering has a positive ... Read More

An Experiment on the Speciation Between Two Differentially Adapted Populations of Scorpions (3012 words, 11 pages)

The Relative Importance of Pre and Post Zygotic Barriers in Speciation Caused by Differential Thermal Adaptation in Centruroides sculpturatusAbstractPre and post zygotic barriers to mating are important to driving and maintaining speciation. While differential thermal adaption is known to be able to maintain distinct populations, it is unknown whether differential ... Read More

The Influence of Maternal Microbiota on Fetal and Neonatal Immune Development (8602 words, 18 pages)

What influence does maternal microbiota have on fetal and neonatal immune development?AbstractHuman microbiota, the community of microorganisms, mostly bacteria, which live in or on the body, can interact with host cells to alter immune function. In utero exposure of the fetus to maternal commensal flora occurs via the placenta and ... Read More

The Reasons Why the Ban on the Use of Stem Cells for Treatment Should Be Lifted in the United States (728 words, 3 pages)

Using Stem CellsUsing stem cells for treatment of common and natural diseases is not a newly found concept. As early as the 1950s, stem cells have found its way in the medical scene. In 1996, the first major law regarding the use of stem cells and federal funding for the ... Read More

Biology Essay Examples