Free Biology Essay Examples and Topics | Page 63

Introduction to the Bacteria Biology Research Paper

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Bacteria refer to single-celled living organisms, which are smaller than the smallest animal and plant cells. A bacterium contains cytoplasm enclosed by a membrane and a cell wall. The bacterial cell contains some genetic material with the purpose of carrying the body’s instructions to the cell.

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Fruits and Their Tastes Biology Essay

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The chemical metabolisms that go together with ripening process do increase the levels of sugar that is available in a fruit and this makes it have a sweet taste (Mauseth, 2003, p 80). Let’s take bananas as our example. They have a lot of starch but as the fruit ripens, it’s converted into fructose.

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Darwinism versus Creationism Biology Research Paper

4 pages (1000 words) , Download 2 , Research Paper

Darwinism asserts that natural selection process will determine the survival ability of each species. Creationism asserts that a supernatural creator (GOD) created the universe and all organisms in the world. Unlike, creationism, Darwinism asserts that all species have a common ancestor and new species emerge from multiplication process and gradual change and adaption to the environment.

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The Impact on the Ecosystem Biology Essay

7 pages (1750 words) , Download 2 , Essay

Since the inception of the modern era, the ratio of humans to plants and animals has been ever increasing because of various factors addressing population explosion and the inability for humans to control the same. However, this is no excuse to give up protecting plant and animal life since humans depend on the same for more than one aspect of their sustenance.

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Tuberous Sclerosis A Rare Disease Biology Research Proposal

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The origin of the disease was traced to a French physician named Bourneville to as far back as the 1880s (Howell, n.d.). The current essay hereby aims to further explore this rare illness through presenting its definition and by expounding on its causes, symptoms, genetic make-up, treatment and various researches made on the subject.

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Aims of the Practical Biology Lab Report

9 pages (2250 words) , Download 8 , Lab Report

In actual sense, the recipient will have the same combination of genes that are used in the plasmid. this is a type of combining genes from the donor to the recipient, in making a strong production. For instance, during the 1970’s researchers had started the research on how genes could be combined from a donor to the recipient.

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Adaptation of the body to hot and cold Biology Essay

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Topic: Adaptation of the body to hot and cold Introduction The human being’s adaptability to heat and cold is a phenomenon originated millions of years ago. Earth is a planet with extreme climatic conditions, and adaptation to it is the genetic quality imbedded in the physiology of human beings.

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Clostridium Botulinum Biology Research Paper

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Commonly, because of their anaerobic nature, they often thrive in canned foods since they provide conditions that favor their growth. In addition, Clostridium botulinum usually forms spores that help them survive conditions that do not favor their growth.

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Personalized Medicine Biology Essay

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Personalized Medicine Name Course Instructor’s Name Date Personalized Medicine The National Human Genome Research Institute has provided a definition of personalized medicine as “an emerging practice of medicine that uses an individual's genetic profile to guide decisions made in regard to the prevention, diagnosis, and treatment of disease.

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How Organisms Cope With Biotic Environmental Factors Biology Essay

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This high percentage is attributed to the process of photosynthesis, which utilizes the CO2, solar energy water, and chlorophyll, an essential component of the respiration of eukaryotes. Interaction of biotic and abiotic components together with biotic-biotic interaction is responsible for the proliferation of life.

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Link Between Biology and Criminology Biology Research Paper

5 pages (1250 words) , Download 3 , Research Paper

The main argument in the modern school of thought is that studying of hereditary traits is insufficient in explaining criminal behavior. However, most criminology theories do not incorporate the structural aspects of biology that leads to criminal behaviors (Walsh, 2002).

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Digestion From Beginning to End Biology Essay

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This essay discusses that mechanical digestion occurs in the mouth and mastication occurs when a person starts to chew and grinds the food using the molars and premolars. As the tongue moves around the food inside the mouth when chewing, the soft palate closes the nasal passages and airway so that the food stays inside the mouth.

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Human Nutrition Biology Coursework

7 pages (1934 words) , Download 2 , Coursework

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It can be rich or poor in nutrition. On the other hand, a meal is composed of a mix of foods, it has better quantities of nutrients as compared to snacks and they take time preparing it (Mark, W, & Peter, S, 2005). Nutritionally, snacks are more fattened and may involve fruit or bread whereas a meal requires cooking.

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Are Viruses Considered To Be Living Organisms Biology Essay

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It was the first mark to the sighting of viruses, hereditary entities that are located in between non-living and living states. But alive or not, virus is the most extensive of all pathogens. It has the capability of infecting every species of organism such as fish, mammals, birds, amphibians, reptiles, insects, bacteria as well as protozoan.

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Maintaining the pH in Its Normal Levels Prevents the Growth of Methicillin-Resistant Staphylococcus Aureus Biology Research Paper

3 pages (832 words) , Download 2 , Research Paper

From the present paper, when Staphylococcus aureus penetrates a break in the surface, it induces an immune response that involves hydrogen peroxide and nitric oxide. For example, when it reaches the gut, it induces what is clinically referred to as enterocolitis, or infection of the digestive tract (Suzuki, 1994).

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Effects of Nutrition on Human Hair Growth Biology Research Paper

6 pages (1500 words) , Download 3 , Research Paper

Hormones are the controlling agents of the growth of hair in the human body, and the said hormones, are protein in nature. This way, the intake of more proteins in the body aids, in the synthesis of these hormones that regulates and leads to hair growth. In addition, protein, in the form of collagen, is the main ingredient in hair where it is at least 90% (Treasured Locks, 2005).

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Molecular basis of aging in relation to fertility Biology Essay

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With regards to the molecular aspects of aging, it is usually characterized by the accumulation of defective or inactivated forms of various enzymes, possibly due to oxidative damage by agents such as free radicals (Stadtman 131). A certain group of protein regulators that control enzymatic products called the polycomb group (PcG) control various gene loci that are essential to an organism, and one of these loci is the Ink4a locus, which contains genes responsible for senescence in organisms (Mishra and Mishra 135).

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Biology - Infectious Diseases Biology Research Paper

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For example, coughing, high body temperature, pimples, scabs or stomach upsets. Our body has a natural defense mechanism known as the immune system which strives to get rid of these infections. The immune system deals in two ways with the foreign particles; through innate and adaptive immunity.

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Biology - Human Genetics Biology Coursework

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To answer this question, you will need to refer both to information in the study book and to information in the video sequences ‘Sickle cell disease: a lethal advantage’ (Activity 17.1) on the DVD. a. Using the symbols given above to represent each of the two alleles, draw a mating diagram between two heterozygous individuals (based on either Figure 5.3 or Figure 6.3 of the study book).

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Skin Cancer: Are Tanning Beds a Safer Alternative Biology Research Paper

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I have collected all this information through research. There are most common three skin cancers are reported in America that is basal cell cancer, squamous cell cancer, and melanoma. It is the most common type of cancer which is increasing in 15 to 34 age groups.

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Effects of Green and Blue Light on the Rate of Photosynthesis Biology Lab Report

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Photosynthesis is the process through which green plants, algae, and cyanobacteria convert the sun’s energy into chemical bond energy of organic molecules that it consumes as food. This paper covers two experiments on photosynthesis; the first one investigates whether a positive rate of net photosynthesis depends on light levels.

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Modification of the Organoleptic Properties of Plant Based Foods Biology Research Paper

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This section informs the reader what the rest of the paper will be about. Human Senses and Food This section describes the impact of human senses on an individual’s food choice and preference. Moreover, it explains how each and every sense in the human body contributes to the food a person consumes.

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Genetic Modification Biology Research Paper

5 pages (1250 words) , Download 2 , Research Paper

This technology is growing at a very high rate hence becoming very common in many countries. The technology involves two genes from two different species being combined together, where genes from a different species are inserted into the DNA of that particular food or plant.

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Human Obesity is not Caused Merely by a Weak Will Biology Essay

6 pages (1500 words) , Download 2 , Essay

It has been observed that in recent years, developed nations are showing a wide prevalence of overweight or obese individuals, while the problem is spreading to the developing nations (despite under-nutrition), thus, turning obesity into a matter of grave danger to the overall public health of a nation.

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DETECTION OF ANTIVIRAL ANTIBODIES IN SERUM USING AN ELISA TECHNIQUE Biology Essay

5 pages (1250 words) , Download 4 , Essay

Antibodies are the fundamental reagents in ELISA. The determination of the presence or absence of the antibody concentration in the blood enables us to identify the disease and understand the level of the disease. Antibodies form a type of glycoproteins in the serum of the blood and they are called as immunoglobulins.

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Tumour Associated Antigens Biology Essay

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Tumor antigens are antigenic proteins produced by tumor cells. These antigens are classified into two broad classes- Tumour- Specific Antigens and Tumour-Associated Antigens. TSA is unique to tumor cells only while TAA is in both tumor cells and normal body cells. This paper explains the antigenic extent to which the knowledge of TAA is useful in the management of cancer patients.

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The Regulation of Gene Expression in HIV and the Life Cycle Biology Essay

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The human immunodeficiency virus is an RNA retrovirus with 2 related forms, HIV-1 and HIV-2. The life cycle of HIV begins with its entry into the host immune cell, such as the T cell and mononuclear phagocytes. Memory helper cells are differentially infected by the virus. The virus binds to the target cell using interactions between viral surface proteins and cell surface proteins.

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Exercise Psychology Assignment Biology Assignment

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1). These elements then function through implementing the arteries, capillaries, and veins to supply the body with oxygen. Specifically, this oxygen travels throughout the body through the blood. Further considerations relate to the specific divisions within the heart.

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Drinking Water and Sanitation Biology Research Paper

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APA, English USA, 4 pages, 6 references Drinking Water and Sanitation Name University Abstract The need for safe drinking water and proper sanitation is paramount to achieving the basic standard of living. The need to achieve this goal is especially important in developing countries in Africa and Asia where people live in extreme poverty.

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Genetic of Hereditary angioedema Biology Research Paper

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The period of swelling in intestinal tract could result in abdominal pain, nausea and vomiting (Gosswein et al., 2008). Eventually, the swelling in airway obstructs the air passage which causes breathing predicaments. Type-I HAE is characterized by reduced plasma antigen levels whereas Type-II HAE is characterized by normal antigen levels with reduced functional C1 inhibitor activity (Pappalardo et al., 2008).

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How Works the Technique of Flow Cytometry Biology Research Paper

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The fluorochrome is bound to an antibody and this antibody bids to the cells. The light source usually used is a laser light. The cells are hydro-dynamically maneuvered such that only one cell intercepts the laser beam at a given time. When these cells intercept the laser beam, light is scattered by them and absorbed by the fluorochrome.

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Vaccine as a Biological Preparation Biology Essay

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Vaccines A vaccine is termed as a biological preparation which helps in making immunity stronger against a certain disease or the disease-causing organism (Bona and Bonilla, 1996). Vaccines are in a way similar to the disease causing agent or micro-organism, since they are derived from killed or weakened forms of the organisms.

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Hypersensitivity Reaction Biology Essay

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In order for hypersensitivity reactions to occur, they need the host to be in a state of pre-sensitization. Gell and Coombs classified these reactions into four groups. These are: allergy, antibody dependent hypersensitivity, immune complex disease, delayed hypersensitivity disease, and autoimmune disease.

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Extent Knowledge of Tumour Associated Antigens Can Be Useful in the Management of Cancer Patients Biology Essay

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Modern medicine is on the way to searching for new methods of treatment. Special attention should be paid to the treatment of cancer because this disease takes away millions of human lives all over the world. There is a huge need to develop innovations in different medical spheres to deal with cancer.

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Opportunistic Microbial Infections Biology Essay

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Opportunistic germs are bacteria and fungi that are found in the mucosae and the skin of external media. They then become virulent when the general immune resistance of the organism drops. This occurs under the influence of factors that favor the change. An example of this is some drugs, and the infections that arise from opportunistic germs have of late become more frequent.

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Biomechanics - Body Movements Biology Assignment

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Skeletal or striated muscles usually work in groups to achieve a specific movement in the body. A bicep curl is the net effect of 2 muscles located in the upper portion of the arm. The bicep curl is a movement that takes place in conjunction with the bones to which the biceps brachii and the triceps muscles are attached respectively (McKinley & O’Loughlin, 2008).

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The Arrangement of the Genes Biology Essay

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Evaluate how the arrangement of the genes which code for T-cell receptors can account for the degree of variability observed in these receptors within an individual The human body is constantly bombarded with pathogens. Whenever we go outside, whenever we touch something, whenever we breathe, we take millions of possibly harmful microorganisms into the body.

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Reducing Medical Errors: Impact on Patients, Health Care Providers and Healthy Quality in USA Biology Essay

5 pages (1250 words) , Download 2 , Essay

Errors in health care are the leading cause of deaths and injuries. The irony is that these deaths and injuries are preventable, because the people working in health care are among the most educated and dedicated workforces in any industry. The obvious question then is why do these medical errors occur?

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Theory of Continental Drift Biology Essay

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He originally submitted his theory of continental drift in 1912 during a gathering of the Germen Geological Association. He also proposed it in his book, which was published in 1915 in which he made reference to the existence of a single large supercontinent 200 million years ago, which he christened Pangaea (Chaomei, 2003).

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Development of the Specific Immune Responses Biology Essay

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Our bodies are both fragile and resilient at the same time; being so soft and easily broken, yet keeping us alive even during the worst of conditions, always adapting and always surviving. One of the important factors that keep us alive is our immune system and its ability to adapt to the environment and the pathogens it contains.

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Nutritional Value of Fast Food Biology Essay

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There is just something wonderful about eating a burger that I know is healthy for me and cannot be considered “junk” food because of the way it was prepared and the nutrition included in the final meal. The JBC is a flame grilled sandwich that combines my two favorite flavors: Grilled Beef and Grilled Bacon.

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Human Biology - Regulation and Control Biology Essay

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21). Individuals have varying responses and reactions towards a change in the environment than others (Welford, 1980, p. 26). In order to understand this phenomenon, we will carry out an experiment using different individuals, both male and female but of varying age.

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Opportunistic Microbial Infections Biology Essay

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The negative effects of normal microbial flora are that they are “major causes of opportunistic infections that develop under permissive conditions”1 of lowered host defences and immunocompromisation. Thesis Statement: The purpose of this paper is to examine “opportunistic” microbial infections; and to investigate examples for bacterial, parasitic and viral opportunistic infections, and the factors that shift the host-pathogen balance to favour the infection.

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Why Many Microbial Infections Are Described as Opportunistic Biology Essay

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Jones et al (2000, p. 1026) explain that some micro-organisms are said to be opportunistic since they cannot infect a person under normal circumstances, but are found to take advantage and cause disease when the immune system of the body is impaired. Thus, opportunistic infection is seen to manifest itself only when a person is ill and the body's defense mechanisms are affected.

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Aspects on How Gene Therapy Works Biology Research Paper

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Gene therapy is still an experimental approach to therapy. Therefore, a lot of further research is required before the full potential of this form of therapy can be realized (Bryant, Duker, and Reichel 89). The history of gene therapy and the related concepts can be traced to the 1960s and early in the 1970s. During this period, there was the discovery of cell lines that were genetically marked.

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What Is Green-House Effect and How Does It Work Biology Essay

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A broad agreement among the scientists reveals that the climate of the earth is gradually changing and the primary cause of climate change is the increased levels of greenhouse gases (GHGs) in the atmosphere. The term ‘Greenhouse effect’ was first used by atmospheric scientists in the early 1800s to describe the naturally occurring phenomena of trace elements (Xe, Ar, Ne, He).

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Read, summarize, and analyze news items about insects, spiders, or mites Biology Essay

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With the increasing usage of pesticides, spread of various infections among the bees and other environmental factors, honey bee populations are declining around the globe. This might seem a trivial matter to a layman, but honey bees are responsible for a major portion of the agricultural produce and the declining numbers of their colonies is an alarming situation.

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Theories of Evolution Biology Essay

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Eventually, these small adaptation accumulate and a new species is formed (Futuyma, 2005). Punctuated equilibrium on the other hand is a scientific theory that hypothesises that evolution occurs over time and is characterised by long durations of virtual standstill (stasis) punctuated by periods in which rapid development occur toward the formation of new forms.

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Stem-Cell Research Biology Term Paper

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This came with the realization that some cells could independently generate blood cells (Popular issues 2012). These discoveries were made through experimentation both on animal and human subjects. The retrospective studies were, however, hindered and limited by the science of the days.

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Beehive extract potential prostate cancer treatment Biology Essay

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According to Jones, Kokontis & Chuu, the discovery of the compound especially its ability to cure diseases was evident a long time ago; however, the medical experts have not approved it because their side effect are unknown. Propolis has been instrumental in curing diseases for many years, but the substance has been ignored in the pharmaceutical industry especially in the US and Europe (Jones, Kokontis & Chuu).

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Biology Essays