Biology Free Essay Examples And Topic Ideas

Respiratory System, Respiratory Distress

Words: 2897 Pages: 10 5203

n include restlessness, dyspnea, tachypnea, tachycardia, and an elevation in blood pressure. While more prominent signs of severe hypoxia are cyanosis, head bobbing, altered mental status, and seizures. While "Hypoxemia is a below-normal level of oxygen in your blood, specifically in the arteries. Hypoxemia is a sign of a problem related to breathing or circulation, and may result in various symptoms, such as shortness of breath known as dyspnea"(Hypoxemia, par. 1). Signs of hypoxemia are not being able to catch […]

Sepsis and Homeostasis

Words: 529 Pages: 2 5279

According to the Gale Encyclopedia of Nursing and Allied Health, Sepsis is a systemic infection that spreads rapidly through the bloodstream and body tissues. Sepsis develops as a result of a massive immune response to bacterial infection that begins as a localized infection, but then spreads into the bloodstream. (Oberleitner & Culvert, 2018) Normal immune and physiologic responses eradicate pathogens, and the pathophysiology of sepsis is due to the inappropriate regulation of these normal reactions (Stearns-Kurosawa, Osuchowski, Valentine & Remick, […]

Immune System Medicine

Mitochondrial Dysfunction in Leukocytes from PCOS

Words: 730 Pages: 2 4643

Mitochondrial dysfunction in leukocytes from PCOS women with insulin resistance was evident by a decrease in mitochondria oxygen (O2) consumption. This was indicated by an increase in ROS production, the oxidized glutathione/glutathione ratio, and TNF? levels, as well as a decrease in mitochondrial membrane potential. Additionally, a defect was observed in the activity of complex I of the mitochondria, which may contribute to the oxidative stress evident in these PCOS women [72]. Furthermore, PCOS women with IR exhibited impaired endothelium […]

Biotechnology Exercise

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Foreign Aid and Micro-entrepreneurship Microfinance Sustainability and Complementary Programs

Words: 1085 Pages: 4 4668

Cross-borrowing enables clients to collect more money from various institutions without close inspection, and the number of applicants for microfinance has rocketed due to cross-borrowing. This has caused new problems for the microfinance sector. The purpose of achieving self-financial sustainability did not have a positive outcome. Because of the poor portfolios of the clients, MFIs could not demand repayment of the debts from the borrowers. Cross-borrowing also deteriorated the financial situation of the poor and trapped them in the cycle […]

Sustainability

Diffuse Intrinsic Pontine Gliomas

Words: 3372 Pages: 11 4560

Introduction/Epidemiology A diffuse intrinsic pontine glioma (DIPG), is a malignant tumor of the pons of the brainstem that originates in the supportive tissue called the glia. Specifically, these tumors are diffuse astrocytomas meaning that the tumor develops from astroglial cells of the brain stem. This tumor accounts for about 10%-20% of all brain tumors in children and roughly 80% of the 300-400 pediatric brainstem tumors that are diagnosed each year. The majority of children who develop this tumor type are […]

Biotechnology Cancer Immune System

Facts about Cells

Words: 333 Pages: 1 4982

All living cells will eventually decay and die. There are two recognized types of cell death: apoptosis and necrosis. Apoptosis refers to the “self-destruction” of a cell by its own mechanisms. Typically, a cell will undergo apoptosis when it is no longer able to repair itself. This could result from a number of possible cell injuries including viral infection, mutation, protein dysfunction, and DNA damage by way of free radicals. Apoptosis is implemented by enzymes called caspases, which have the […]

Medicine

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The Delicate Dance of Life: Unraveling the Mystery of Birth

Words: 626 1633

There are moments in life that spark insatiable curiosity, and few questions resonate as universally as, "Where do babies come from?" While many a parent has pondered how best to answer this when posed by a young child, the reality is that the genesis of human life is both a scientific marvel and a philosophical wonder. At the heart of the biological explanation is the union of two distinct cells: the sperm from the father and the egg from the […]

The Enigma of the Dracula Monkey: Nature’s Mysterious Marvels

Words: 503 1570

In the dense, layered canopies of the Southeast Asian rainforests, an elusive and rather unusual primate goes about its daily activities, virtually unseen by the human eye. Aptly nicknamed the "Dracula monkey," the Nycticebus coucang, or the slow loris, is not just another adorable face in the animal kingdom. Behind those wide, innocuous eyes lies a fascinating story of evolution, survival, and mystery that's captured the curiosity of scientists and nature enthusiasts alike. The slow loris, despite its innocent appearance, […]

The Bond between the Themes and Science in Never Let me Go and Gattaca

Words: 956 Pages: 3 2044

Many science fiction movies, including those involving human clones, occur hundreds of years in the future where technology surpasses what society has now and where the world appears completely foreign compared to today. Although this futuristic approach can create an intriguing film, it may be less disturbing for viewers because they cannot deeply relate to the characters or their environment since the movie's world is vastly different from their own. This fact makes the 2010 movie "Never Let Me Go," […]

Never Let Me Go

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Apoptosis in each Living Thing

Words: 350 Pages: 1 4626

Apoptosis goes on in each living thing. It shapes the beginning life form of every animal and is behind the huge adjustments of caterpillars into butterflies and tadpoles into frogs. Some plant cells moreover deliberately execute themselves, for example, to stop an assaulting parasitic or bacterial tainting spreading. In run of the mill tissues there is a concordance between the period of new cells by methods for cell division and the loss of cells by methods for cell downfall. Old […]

Biotechnology

Apoptosis or Programmed Cell Death

Words: 1722 Pages: 6 4884

Apoptosis is an important cellular process that allows cells to die in a programmed and organized fashion. This form of programmed cell death is crucial to the stability and equilibrium of living organisms. Such a process is shared amongst vertebrates and invertebrates alike (Miguel-Aliaga et al., 2009). It is easiest to define “normal” development by observing that which is understood as abnormal. Programmed cell death is understood to have a distinguishable relationship with cell division and differentiation. If they are […]

Death

Intracellular Role of Apoptosis in In-Vivo Reactions Occurring in Multi-Cellular Organisms

Words: 1944 Pages: 6 4417

There are two well-known methods of cell execution: Apoptosis and Necrosis. Necrosis is regarded as a violent form of cell death, whereas apoptosis, on the other hand, is a more benign, modulated, and rational mode of killing cells. This process involves making well-informed decisions about selected cells to be terminated for the greater good of the host organisms. The advantages associated with the use of apoptosis as a regulated manner of programmed cell execution are well documented in literature. These […]

Biotechnology

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Estrogen, a Steroid Hormone

Words: 246 Pages: 1 4893

Our results extend previous observations describing estrogen's neuroprotective effects. A previous study suggested that the sex hormones estrogen and testosterone worked differently as neuroprotective agents. It provided data for a role of testosterone as a neuroprotective hormone in neurons. When looking at how they regulate protease activity, their results show that testosterone and dihydrotestosterone inhibited calpain activation and the generation of the 17-kDa tau fragment, but did not work on caspase-3 activation and tau truncation at Asp421 as estrogen did. […]

Biotechnology Dementia Medicine

Immunity – Humans are Exposed with Microbes

Words: 1525 Pages: 5 4843

Humans are exposed to microbes that contain a vast array of allergenic substances, threatening normal homeostasis. Therefore, the immune system is important to defend the body from pathogens. It eliminates pathological microbes and toxic or allergenic proteins, but it must avoid responses that cause excessive damage to self-tissues or potentially eliminate beneficial commensal microbes. A general feature of the immune system is that its mechanisms rely on detecting structural features of the pathogen or toxin that mark it as distinct […]

Biotechnology Immune System Medicine

Harmful Side Effects of Synthetic Drugs

Words: 909 Pages: 3 4988

Literature shows that synthetic drugs are more expensive and known to have harmful side effects compared to natural drugs. This fact simply advocates the economic benefit that it's cheaper to extract the phytochemicals from medicinal plants, rather than using expensive laboratory chemicals. Medicinal plants are commonly used for the treatment of various diseases because they are considered to be advantageous. Medicinal plants contain numerous phytochemicals with potential biological activities that have been identified. Oxidative stress and inflammation are primarily […]

Biotechnology

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RIP3, an Energy Metabolism Regulator

Words: 628 Pages: 2 4530

That Switches TNF-Induced Cell Death from Apoptosis to Necrosis describes steps that led to the discovery of protein kinase receptor-interacting protein 3 (RIP3), a molecular switch that changes TNF-induced cell death from Apoptosis to Necrosis. Necrosis is a caspase independent cell death induced in the presence of caspase inhibitor zVAD and simulation of TNF. Tumor necrosis factor (TNF) is an inflammatory cytokine that induces necrotic cell death as well as transcription factor activation and inflammatory and immunological responses. It brings […]

Biotechnology Metabolism

Why the Concept of Race is not Biologically Supported?

Words: 1006 Pages: 3 4616

The concept of race is not supported biologically nor can humans be naturally divided into racial categories. Humans are biologically different; however, do not fall in racial groups nor are biological units (Fuentes 2012, 73). The ABO system, Human Genome Project, and Ancestry Informative Markers explains how and why the concept of race is not biologically supported nor can humans be naturally divided into racial categories. The ABO system does not have any human division alleles between black-white-Asian model of […]

Brown V. Board Of Education Concept Critical Theory Culture NAACP Race Racial Segregation

Role of OX -Notch Signaling in Thymic Treg Development and Homeostasis

Words: 501 Pages: 2 4803

Regulatory T cells (Tregs) plays a crucial role in immune tolerance and diminution of their homeostatic balance causes autoimmunity. Tregs are generated in the thymus (Natural Tregs) and contribute a major portion of the peripheral Treg pool where they suppress self-reactive effector T-cell response. Thymic Treg development occurs in two phases i) In TCR-dependent phase where thymocytes expressing high-affinity T-cell Receptors (TCR) give rise to CD4+CD25-FoxP3low and CD4+CD25+FoxP3- Treg progenitors, ii) In the second TCR-independent phase thymic Treg progenitors gain […]

Immune System

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Journal Article for Review: Apoptosis-induced CXCL5

Words: 1438 Pages: 5 4697

The article under review examines the acceleration of inflammation and growth of prostate tumor metastasis in bone due to apoptosis-induced CXCL5. Tumor cell death, which can be increased by targeted therapies, causes immense efferocytosis to clear the apoptotic cells. It is thought that this can lead to accelerated tumor growth. The scope of this research article is limited to prostate cancer cells and the proinflammatory cytokine, CKCL5, along with other variants. This article will exclude other ways of metastasis of […]

Biotechnology Cancer Immune System Journal Medicine Prostate Cancer

The Dance of Nerves: Somatic Vs. Autonomic Systems

Words: 546 1633

In the intricate tapestry of the human body, nerves play a crucial role, acting as the threads that connect our internal world with the external environment. Like a symphony's conductor coordinating individual instruments to produce harmonious music, our nervous system ensures that different parts of our body work in tandem. Two principal actors in this performance are the somatic and autonomic nervous systems. Although they share the stage, each plays a unique role, making them both distinct and indispensable. The […]

Globular Protein – Caspase-9 Enzyme

Words: 1591 Pages: 5 4521

The globular protein caspase-9 may initially not seem very important or significant, as it sounds like the ninth of many other caspase proteins. However, this protein plays a vital role, not only in the cell’s life cycle but also in the life of humans and other mammals. Caspase-9 is an enzyme whose function ultimately leads to cell degradation and apoptosis. This protein is a member of the peptidase family C14, and is encoded by the CASP9 gene located on the […]

Biotechnology Protein

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Discoveries in Biological Science

Words: 826 Pages: 3 4688

The world of biological science is a diverse, fascinating and ever-changing field. One that is filled with many ground-breaking discoveries that continue to shape the world we live in today. Within the past 200 years, advances in technology have rapidly increased which has led to incredible biological breakthroughs. Biologists like Alexander Fleming, Marie Curie, and George Otto Gey, have paved the way for our future generations. Just under 100 years ago, a biologist, and physician, by the name of Alexander […]

Henrietta Lacks Medicine

A Form of Preprogrammed Cell Death

Words: 1332 Pages: 4 4710

Apoptosis is a form of preprogrammed cell death. It can occur if DNA is too damaged or if a cell is infected and cannot complete its function anymore. There are two pathways to trigger cell death. The extrinsic pathway begins the process through external ligand binding. The intrinsic pathway begins by releasing mitochondrial proteins into the cell. Both pathways lead to the cell diminishing in size before beginning to break apart. Once this happens, adjacent cells and macrophages take in […]

Biotechnology Cancer Death

Homosexuality Behavior is Exhibited through all Types of Species of Animals

Words: 1422 Pages: 5 5690

We as a species are the only ones to grasp an understanding of it through biological, psychological and social aspect. We can view how biology,psychology and social play factors into why are gay ro why they might hide the fact that they are. I will be discussing how this mainly affects male homosexuals in general. Most cases are focused on the male narrative of homosexuality in the aspect that males are the mainly subjects in biological study, socially are more […]

Animals Behavior Coming out Culture Family Father Gender Human Sexuality Personal Beliefs Religion

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Accelerated Inflammation and Cancer Metastases

Words: 1226 Pages: 4 4944

Background Prostate cancer is one of the most common forms of cancer that can metastasize to the bone. The mechanism of how cancer cells break away from their primary origin and travel through the bloodstream to the bone is a process that is still unclear to many scientists (“Bone Metastasis,” 2018). Once cancer cells reach the bone, they become a part of an environment where it is easy for the cells to become mobile, proliferate, and differentiate to proinflammatory cells. […]

Biotechnology Cancer Experiment Medicine Prostate Cancer

Biological Basis of Human Sexual Orientation

Words: 1557 Pages: 5 5069

The desire to study the biological basis of human sexual orientation in the scientific community is relatively recent phenomenon. To this day, sexual orientation acquisition remains one of the most prominent biological mechanisms unknown to science. It has become clear, however, that human sexual arousal, which is usually triggered by external stimuli or endogenous factors, is a multidimensional experience comprising cognitive, emotional, motivational, and physiological components (Hu et al, 2008). With this in mind, from as early as the 1990s, […]

Sexual Orientation

A Brief Review of Prostate Adenocarcinoma

Words: 2093 Pages: 7 4781

Prostate cancer continues to be a major cause of cancer-related death in the male population of the western world, even with incidence rates on the rise worldwide. This increase in new prostate cancer diagnoses each year in the western world is presumably resulting from their lifestyle and environment (Tian, Guo, Zheng, & Ahmad, 2017). A clear clinical diagnosis of prostate adenocarcinoma rests in the hands of a pathologist following a needle biopsy. It often depends on the absence of the […]

Biotechnology Cancer Prostate Cancer

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Unveiling the Complex World of the Immune System

Words: 1829 Pages: 6 5737

The immune system as a protection against infections from foreign macromolecules or attacks by organisms, including viruses, bacteria, protozoa and parasites. The immune system also plays a role in resistance to body proteins and other molecules such as those that occur in autoimmunity, and against cells that are aerated into tumors. The ability of the immune system to differentiate components of body cells from components of foreign pathogens will sustain the mandate it carries to respond to pathogenic infections, both […]

Immune System Medicine

‘Henrietta Lacks’: a Donor’s Immortal Legacy

Words: 397 Pages: 1 5254

The book “Immortal Life of Henrietta Lacks” is a true book of her life experience written by American writer Rebecca Skloot. The book examines Henrietta Lacks, a poor tobacco rancher from the Southern US, whose cervical disease cells were gathered in 1951. Henrietta never knew that she was being so generous .Without her understanding or consent or any monetary pay, these cells were utilized to make an immortal cell line known as HeLa that researchers are utilizing right up 'til […]

Cancer Health Care Henrietta Lacks Medicine Public Health

About the Cellular Basis of Cancer

Words: 1885 Pages: 6 5025

At a cellular basis, cancer cells are not that different from normal cells. In fact, from a biological view point cancer cells originate from normal cells. The features of a cancer cell; such as migrating away from its origin point, mutating and replicating itself, evading cell death and providing itself with a supply of oxygen and nutrients, can all be found in normal healthy cells (Oppenheimer 2006; Tu 2010). However, it is what these cells then do to the surrounding […]

Biotechnology Cancer Medicine

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