Biology Essays
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Latest Biology Essays
- Functions of CardiomyocytesPublished: Mon, 18 May 2020Extract: The heart is the heart of the body. It ensures that blood and oxygen is pumped throughout the body. Despite being a little bit larger than a grapefruit, it is one of the most important parts of the body. It weighs eight to twelve ounces depending of the person’s gender (Lewis, 2016). When deoxygenated blood […]
- Impacts of Environmental Pollution on the Acipenser SinensisPublished: Mon, 18 May 2020Extract: Introduction: Acipenser Sinensis is a large-scale upstream fish that is unique to ancient China. We says Acipenser is a “living fossil” because “One of the most primitive species of fish in the world. In the Zhou Dynasty, which was more than 1,000 years before BC”(Wang Wei, 2014). The Chinese sturgeon is type of bony fish […]
- Genetic Factors for Leber Congenital Amaurosis (LCA)Published: Mon, 18 May 2020Extract: Introduction ABC News Nightline recently aired a story about six-year-old Monroe, twenty-five-year-old Heather and then twelve-year old Christian who all suffered from a severe ocular impairment disease called Leber Congenital Amaurosis or LCA. This rare disease causes retinal dystrophy and is inherited. The eye disorder causes severe vision loss at birth, or within the first […]
- Microbiology of Lyme DiseasePublished: Mon, 18 May 2020Extract: Microbiology of Lyme Disease “A team of researchers led by the Yale School of Public Health has found that the Lyme disease bacterium is ancient in North America, circulating silently in forests for at least 60,000 years—long before the disease was first described in Lyme, Connecticut, in 1976 and long before the arrival of humans”, […]
- Embryo Morphogenetic Changes at the End of GastrulationPublished: Mon, 18 May 2020Extract: Starting from the three-layered embryo at the end of gastrulation, describe the morphogenetic changes that lead to the formation of the neural tube, divided into separate brain vesicles, and organisation of tissues and the body plan in the tailbud stage embryo (equivalent to 4-5 weeks of gestation in humans). Between weeks three and four of […]
- Diffusion Through Living MembranesPublished: Mon, 18 May 2020Extract: “Diffusion Through Living Membranes” Introduction a.) Background Information– A membrane is a thin layer of cells that act as a boundary. It separates the interior of ALL cells from the outside environment. The plasma membrane allows nutrients to enter the cell and keeps out unwanted substances. This process is known as selective permeability. There are […]
- Sex Specific Dominance Reversal Maintains Genetic Variation for Fitness in Drosophila MelanogasterPublished: Mon, 18 May 2020Extract: Sex specific dominance reversal maintains genetic variation for fitness in Drosophila melanogaster. Natural selection is a relentless force which drives beneficial alleles to fixation and eliminates deleterious ones. With the dynamism natural selection imposes, explaining the maintenance of genetic variation for fitness is an ongoing challenge in evolutionary biology [1]. Mutation-selection balance provides a partial […]
- Human Reproduction, Growth and DevelopmentPublished: Mon, 18 May 2020Extract: Male reproductive system consists of a number of sex organs that are mainly associated with the biological process of reproduction. The male reproductive part consists of penis, scrotum, testicles (testes), epididymis, vas deferens, ejaculatory ducts, urethra, seminal vesicles, prostate gland and bulbourethral gland. According to Maggi et al. (2016), urethra and penis are part of […]
- Potential for the Spread of Listeria MonocytogenesPublished: Mon, 18 May 2020Extract: The Mystery in Your Refrigerator -Why Fried Bologna Can Make a Comeback This will be a discussion about the pathogenic bacterium Listeria monocytogenes. Included in the discussion will be an in-depth investigation into the diseases L. monocytogenes causes, the people it effects and how they are treated, how the disease is transmitted and what can be […]
- Medical Uses of AyahuascaPublished: Mon, 18 May 2020Extract: Many plants, from many different families, have been shown to contain valuable chemical properties that humans have utilized medicinally for centuries. Traditional medicine systems relied on these plant properties to treat physical, mental, and spiritual injury. Specialists within a community had knowledge of which plants would effectively treat or sooth which ailments. In ancient cultures, […]
- A Role for Cell Free ERVs in Propagating IFN Type-I ResponsesPublished: Mon, 18 May 2020Extract: As previously mentioned, OC is the most lethal of the gynaecologic malignancy in the western world and this is due to poor prognosis and limited treatment efficacy (Coretz et al., 2018). In a meta-analysis Immunotherapy alone has been proven to not yield significant results in OC patients, requiring the need for a combinatorial therapy (Alipour […]
- Drosophila Melanogaster Genetic StudyPublished: Mon, 18 May 2020Extract: The Drosophila melanogaster otherwise known as a common fruit fly serves as a novel organism for genetic study. By studying mutations in Drosophila melanogaster researchers can better understand how the processes of Mendelian Genetics are implored in organisms and subsequently in humans. The purpose of this paper is to describe the phenotypic differences of Wild-type […]
- Experiment to Study GenesPublished: Mon, 18 May 2020Extract: RNAi Laboratory Series Introduction The purpose of this experiment was to obtain a clear concept of how genes work and how genes are studied. Two Drosophila genes were silenced using several techniques and the phenotype were observed. So the process of DNA replication, transcription, and RNAi was used to “knock out” the gene expression […]
- Lysosomes: Structure and FunctionsPublished: Mon, 18 May 2020Extract: Lysosomes are organelle found in the cytoplasm of eukaryotic cells and are often referred to as the “stomach of the cell.” Lysosomes were discovered in 1949 by a Belgian cytologist, Christian De Duve (Inpanathan and Botelho, 2019). De Duve recieved the 1974 Nobel Prize for Physiology or Medicine for his discovery of lysosomes and peroxisomes. Once […]
- Mycetoma Control and PreventionPublished: Mon, 18 May 2020Extract: INTRODUCTION Mycetoma is a slow progressing chronic inflammatory tropical disease caused by actinomycetoma bacteria and eumycetoma fungi found in soil and water1. These bacteria and fungi enter the body through open wounds or abrasions on the skin. Symptoms appear as firm painless nodules under the skin, in the subcutaneous tissue, and develop into granulose oozing […]
- The Stages of SleepPublished: Mon, 18 May 2020Extract: The human brain can function in a number of ways, some of which are still being studied today. A process that we have studied intensely and have been able to generate a systematic explanation for, is the sleep cycle. The ability of the mind to slip from consciousness, an awareness that makes sense of all […]
- Relationship Between Central Control Mechanisms Used in Gait Initiation (RT and APA) and Limb DominancyPublished: Mon, 18 May 2020Extract: INTRODUCTION There is high evidence that the function of the two limbs is different, one limb is used for mobility whereas the other one contributes to control1, 2). Many researchers believe that the mobilizing limb is the preferred foot (dominant) while the limb that is used for postural support is the non-preferred foot (non-dominant)3). […]
- Mechanisms for Repairing DNAPublished: Mon, 18 May 2020Extract: Peer Essay #6 It is commonplace for a medical student to associate homologous recombination with genetic diversity and inheritance. However, an additional role that this mechanism plays in the cell is to repair DNA, specifically when both strands of DNA have been damaged. These particularly severe breaks are caused by exogenous, environmental factors, such as […]
- PAC1 (PACAP Receptor) Receptor Splice Variants and Effects on PAC1 FunctionPublished: Mon, 18 May 2020Extract: Description of the PAC1 (PACAP receptor) receptor splice variants and the effects they have on PAC1 function. INTRODUCTION G-protein-coupled receptors (GPCRs) represent the largest family of membrane-associated proteins mediating physiological responses in vertebrates by means of controlling metabolic, neural, and developmental functions (1). They are expressed in almost all types of tissues and respond […]
- Nitrogen Cycle- Algae Bloom and EutrophicationPublished: Mon, 18 May 2020Extract: Problem Description for- “NITROGEN CYCLE- ALGAE BLOOM AND EUTROPHICATION” 1. Overview As we all know Nitrogen constitute 78% of an atmospheric air. But neither our human body nor plants possess the right enzyme to utilize it. Nitrogen is important for food supply, but excess nitrogen can be harmful in many ways. There are two major […]
- Enterococcus Faecalis Identification ExperimentPublished: Mon, 18 May 2020Extract: Abstract Enterococcus faecalis is a cocci-shaped, gram positive microbe and is classified as one of the most prevalent antibiotic drug resistant nosocomial pathogens worldwide. Enterococcus faecaliscan be found in soil, water and plants, however, some strains are found in the human intestinal system as facultative anaerobes. The bacteria doesn’t normally cause infection in the gut […]
- Indentification of Unknown MicroorganismPublished: Mon, 18 May 2020Extract: Lab 5: Pure Culture Technique: Isolation of Bacteria This experiment has two techniques which are continuous and discontinuous streaking; our laboratory instructor gave us our unknown for this experiment. We sterilized our wire loop by holding until it turns bright orange-red. We wait for it to color then streak the bacteria with a loop from […]
- Harmful Algal Blooms – a Rapidly Expanding Problem of the 21st CenturyPublished: Mon, 18 May 2020Extract: ABSTRACT Harmful algal blooms (HABs) have been observed in nature for centuries, but recently these blooms have increased in frequency and intensity in both fresh and marine waters (O’Neil, 2012). Many studies have shown that eutrophication of water bodies, increased water temperature, more intense precipitation, and introduction of invasive species have played a significant role […]
- Molecular Modelling Studies of the Oxygen Evolving Complex in PhotosynthesisPublished: Mon, 18 May 2020Extract: Introduction Photosynthesis is a biological process at which occurs in the thylakoid membrane. This process occurs in some organisms, such as cyanobacteria, algae and plants. It is induced by light or solar energy. It also produces chemical energy which is converted from light in chloroplast. An electron from ground state energy level will be excited […]
- Photosynthesis Management Case StudyPublished: Mon, 18 May 2020Extract: INTRODUCTION The quality of wine is highly dependent on the quality of the fruit produced from grapevines (Watson 2003, Coombe and Dry 2004, Conde et al. 2007). Fruit quality for wine is characterized by an optimal balance between different compounds in the berries as they ripen (Coombe and Dry 2004). The main compounds are acids […]