Free essays on biology refer to the academic papers that are available for public access and are not charged or restricted by any institution or platform. These essays generally cover a wide range of topics in the field of biology, including the study of living organisms, their structure, classification, evolution, behavior, and interactions with their environment. These essays can be helpful in providing insight into various biological concepts and theories and can be used as references or study materials for individuals who are interested in pursuing a career in the field of biology. Additionally, free essays on biology can benefit students who require research material for their academic projects or assignments, or those who want to expand their knowledge base in the subject area.
Cellular Respiration: Unraveling the Energy-Producing Process
Cellular respiration is a fundamental biological process that takes place within the cells of living organisms. It is a series of complex chemical reactions that converts glucose and oxygen into carbon dioxide, water, and adenosine triphosphate (ATP) – the currency of energy in cells. This vital process is essential for the survival and functioning of all living organisms, from tiny microorganisms to complex multicellular beings like humans. At its core, cellular respiration is an aerobic process, meaning it requires oxygen…...
Cellular Respiration
IGCSE Coordinated Science: Characteristics Living Organisms
IGCSE Coordinated Science: Characteristics of Living Organisms Characteristics of Living Organisms Functions of living things: MRS GREN Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition. 1. Movement The majority of organisms have the ability to move their entire body, including plants, which can move their stems toward sunlight and their roots toward healthy soil. 2. Respiration This is the breakdown of food inside a living organism and IT IS VITAL for survival. There are 2 types of respiration ● Aerobic Respiration…...
Biology
IGCSE Coordinated Science: Movement in and out Cells
IGCSE Coordinated Science: Movement in and out Cells Movement in and out Cells 1. Define diffusion Diffusion is the term for the net movement of molecules down a concentration gradient from a region of higher concentration to a region of lower concentration as a result of their random movement. 2. Describe the importance of diffusion of gasses and solutes and of water as a solvent. Gases ●Necessary for gas exchange in all living organisms ●Necessary for obtaining Carbon Dioxide and…...
Biology
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IGCSE Coordinated Science: Tropic Responses
IGCSE Coordinated Science: Tropic Responses Tropic Responses 1. Define and investigate geotropism (as a response in which a plant grows towards or away from gravity) and phototropism (as a response in which a plant grows towards or awa from the direction from which light is coming). Plants can’t move, we all know that, unless you watch some weird TV show where they can. Then, they need to have some other abilities to receive the benefits of sunlight, hence maximum photosynthesis.…...
Biology
IGCSE Biology Photosynthesis
IGCSE Biology Photosynthesis Photosynthesis - a process by which plants manufacture carbohydrates using sunlight, carbon dioxide and water - by product : oxygen - occurs inside chloroplasts which posses chlorophyll Uses of Glucose - is able to be combined to create starch for storage - can be used to release energy during respiration - is able to be transformed into fructose for the fruit - can be converted into fat and oil for the seeds - can be joined together…...
Biology
IB Biology: DNA Replication
IB Biology: DNA Replication DNA Replication Key Statements DNA replication can only occur in a 5 to 3 prime direction. The two polynucleotides that make up a DNA strand are anti-parallel to each other. All polymerization in the leading and lagging strands all begin with the addition of an RNA Primer, which the DNA polymerase can bind to. State that DNA replication occurs in a 5′ to 3′ direction. Leading Strands The LEADING STRAND is the strand of unwound DNA…...
Biology
IGCSE Coordinated Science: Characteristics of Living Organisms
IGCSE Coordinated Science: Characteristics of Living Organisms 1.1 Characteristics of Living Organisms Functions of living things: MRS GRENMovement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition. MovementMost organisms are able to move their whole body even plants can shift their stem towards the sunlight and their roots move towards healthy soil. RespirationThis is the breakdown of food inside a living organism and IT IS VITAL for survival. There are 2 types of respiration Aerobic Respiration which involves O2 & glucose breaking down…...
Biology
Somatic Vs Autonomic – The Two Pillars of Our Nervous System
When we speak about the nervous system, our thoughts often gravitate toward the brain - the organ that serves as the conductor of the grand symphony that is our body. However, the performance would crumble without the instrumentalists, the unsung heroes of our biological orchestra – the somatic and autonomic nervous systems. These two distinct yet harmoniously interacting systems are the hands-on architects of our interaction with the world, orchestrating the daily rhythm of our existence. The somatic nervous system…...
Nervous System
The Give and Take of Life: Unveiling the Symbiotic Dance of Photosynthesis and Cellular Respiration
Life on Earth, as we know it, is a grand interplay of countless processes, a magnificent symphony that reverberates with the rhythm of nature. Among these processes, photosynthesis and cellular respiration stand out as two of the most fundamental, underpinning the very existence of life. These two biochemical processes, despite appearing to be polar opposites, are inextricably linked, each enabling and enhancing the other in a reciprocal relationship.On one side of the equation, we have photosynthesis, the miraculous process that…...
Biology
The Metamorphosis of Moths: Unraveling the Mystery Behind Their Color Change
Amid the symphony of nature's captivating spectacle, the humble moth holds an intriguing position. Moths, the often overlooked cousins of butterflies, offer a fascinating case study in evolutionary biology, particularly when it comes to the changes in their color patterns.Many may wonder: why do moths' colors change? The answer, quite intriguingly, lies in the hands of Mother Nature and her most ingenious invention - evolution.The change in the color of moths is primarily a survival strategy, a natural phenomenon called…...
Biology
The Miracle of Growth: Mitosis in Action Within Plant Roots
Gardening enthusiasts and biology aficionados, unite! This post aims to shed light on the enthralling phenomena occurring beneath the surface as plants stretch their roots through the soil. Among the plethora of biological processes, mitosis is a star player, particularly when we talk about plant roots. Through this cellular marvel, plants grow, repair, and maintain themselves. But before we dive into the underground world, let's unravel the mystery behind mitosis.Mitosis is a form of cell division that allows a single…...
Biology
The Unsung Hero of Cellular Survival: The Vital Role of Osmosis
Cellular life is an intricate symphony of processes, each note perfectly pitched to maintain the harmony that allows cells to thrive. Amidst this complex concert, one unsung hero quietly orchestrates an essential part of cellular life - osmosis.Osmosis is a type of passive transport, a process that moves molecules across cell membranes without requiring energy. Specifically, osmosis involves the movement of water molecules from an area of lower solute concentration to an area of higher solute concentration. But why is…...
Biology
The Charm of Cheeks: Understanding the Genetics of Dimples
Among the array of features that define our facial aesthetics, dimples stand out as an especially fascinating trait. These charming indents, appearing as small depressions in the skin when we smile, are often considered endearing and attractive. But have you ever wondered about the genetics behind them? Are they a dominant or recessive trait? This post aims to provide some clarity on this captivating topic.Firstly, it's essential to understand what dominant and recessive mean in the context of genetics. Our…...
Biology
Corn and Mendel’s Law of Independent Assortment: A Clear Illustration of Genetics at Work
When we think about genetics, Gregor Mendel and his pioneering work on pea plants immediately come to mind. However, Mendel's principles of inheritance apply to many organisms beyond peas, including one of our most common crops: corn. This article will delve into how corn beautifully illustrates Mendel's law of independent assortment.First, let's clarify what Mendel's law of independent assortment states. According to this law, during gamete formation, different pairs of alleles for different traits segregate, or assort, independently of each…...
Genetics
The Science and Technology of Transplantation Tissue Engineering
Injuries and diseases that cause tissue damage often lead to situations that need tissue or organ replacement, Normally tissue damage is corrected by an inherent regeneration mechanism in the body. In situations where the damage is extensive or the regeneration mechanism fails to work, organ transplantation is often required. The scarcity of obtaining organ or tissue for transplant, leave these patients with overall low quality of life and financial burden on their family as well as the society as a…...
BiologyEngineeringMedicineTransplantation
The Benefits and Drawbacks of Organ Transplantation
Organ transplantation became one of the major achivements of the let century. Using this method, doctors are able to save more and more lives every day. Although organ transplanting is still in a the early stage of development, many people consider it as a life saving procedure Several human organs can be transplanted from deceased people for example, hearts, lungs or pancreas. But there are also people who are alive and willing to donate an organ to someone who is…...
AnatomySurgeryTransplantationZoology
An Overview of Organ Transplantation and the Moral and Ethical Principles Behind the Medical Process
Many people believe that organ transplants are a thing of only the present, that they used to not be a prevalent thing. But they’re wrong, it‘s been used since at least as far back as 3000 BC. We’ve discovered evidence of using skin to reconstruct body parts that far back Images if mythical monsters with various animal’s body parts suggested that they were also capable of transplant surgeries Even sources like the bible have stories of body parts being transplanted…...
AnatomyHealth CareMedicineTransplantation
An Essay on Transplantation of the Cornea
Transplantation is that act of transferring cells, tissues or organs from one site to another. Transplant rejection is the process by which a transplant recipients immune system attacks the transplanted cells. tissues or organs (MedicinePlus). The main barrier today is rejection of transplanted organs which occurs as a result of cellmediated and humoral responsesby the recipient to antigens called Human Leukocyte Antigen (HLA). Transplant rejection occurs when transplanted tissues are rejected by the recipient's immune system. The transplanted tissues are…...
AnatomyBiologyMedicineTransplantation
The Causes and Spread of the Sexually Transmitted Diseases
Sexually transmitted diseases (STDs). also called venereal diseases, are caused by germs that travel from person to person through sexual contact. Common STDs include syphilis, chlamydia, genital herpes, gonorrhea, and AIDS. Because the germs that cause STDs die quickly outside the human body. these sicknesses are not spread through coughing, sneeZing, or contact With infected objects such as t0ilet seats or eating utensils. Most STDs, however. can be transmitted from an infected pregnant woman to her baby, often causing serious…...
MicrobiologySexualitySexually Transmitted Diseases
An Introduction to Duchenne’s Muscular Dystrophy as a Result of a Defective Gene on the X Chromosome
Duchenne's muscular dystrophy is the result of a defective gene on the X chromosome. This gene is responsible for production of the muscle protein dystrophin. Dystrophin is an integral pan of the dystrophin-glycoprotein complex which bears the brunt of the force generated during muscular contraction. When dystrophin is not produced, the dystrophin»glycoprotein complex (DCG) is not present. Absence of the DCG leads to tears in the muscle membrane because the muscle membrane bears the force of muscular contraction alone. Tears…...
AnatomyBiologyBiotechnologyMuscular Dystrophy
An Overview of Cystic Fibrosis (CF)
Cystic Fibrosis (CF) is the most common lethal genetic disease of Caucasians. which causes certain glands to malfunction. In CF mucous glands produce a thick. sticky mucus which interferes with breathing and digestion. Mucus clogs passages in lungs and ain/vays. causing breathing difficulty. chronic coughing, and sometimes heart failure. Mucus also blocks ducts in the pancreas. preventing digestive enzymes from reaching the intestines. and it may also clog the liver and digestive tract. Today about 30.000 people in the United…...
BiologyBiotechnologyChemistryCystic Fibrosis
A Discussion on the Effects of Cystic Fibrosis
Cystic Fibrosis is characterized by a build-up of thick, sticky mucus that can bring about the onset of progressive damage to the respiratory system and chronic digestive system debilitationst. The abnormal mucus can clog airways, which may lead to respiratory conditions and bacterial infections in the lungs, causing chronic coughing, wheezing, and inflammation. Accumulation of mucus and infectious agents results in permanent lung tissue damage, formation of fibrous scar tissue, and the development of cysts in the lungs. Due to…...
BiologyBiotechnologyChemistryCystic Fibrosis
An Examination of the CRISPR Cas9 Treatment for Cystic Fibrosis
Cystic fibrosis is a hereditary disease caused by a mutation of the cystic fibrosis transmembrane conductance regulator (CFTR) gene on chromosome 7 which damages the lungs and digestive systems. As scientists have aimed to cure and prevent cystic fibrosis, distinctive technology CRISPR Cas9 has been introduced which allows scientists to make changes to DNA in cells that could cure genetic disorders. The development of inquiry question ‘does CRISPR Cass have the potential to accurately prevent and cure cystic fibrosis? ',…...
BiologyBiotechnologyCystic Fibrosis
The Kirby Bauer Test, a Way to Determine Whether or Not Bacteria are Affected by Antibiotics
The Kirby Bauer test is an inexpensive way to test whether not bacteria are affected by antibiotics. This test was conducted on eight antimicrobials to test and compare the effectiveness, susceptibility, and zones of inhibition During this experiment Mueller- Hinton agar plates were used for the testing, and the two bacterial cultures compared were Escherichia coli and Staphylococcus aureus. The eight antimicrobials tested were Ampicillin (10 pg, AM 10), Chloramphenicol, Ciprofloxacin, Erythromycin (15 pg, E 15), Kanamycin (30 pg, K…...
AntibioticsBiologyMicrobiology
A Report on the Problem of MRSA and the Resistance of S. Aureus to Penicillin-Based Antibiotics
Staphylococcus aureus (S. aureus) is a facultative anaerobe With a spherical shape that grows in clusters with a yellow appearance. This bacteria colonizes well in high moisture areas as well as light moisture environments, and can survive on dry surfaces for extended periods of time. In the majority of cases, this microorganism acts as a harmless commensal. However, in the right setting at the right time it can cause severe and at times fatal infections such as bloodstream infection (BSI).…...
AntibioticsHealthMicrobiology
The Theme of of Conquering One’s Fears in the Book Life of Pi by Yann Martel
Survival is a big thing in everyday life, from just making money to feed families and live a happy life, to the struggling of having all the necessity essential for life. In the book, Life ofPi, by Yann Martel the journey that Pi experiences clearly portrays the big idea of survivali Pi’s journey out in the sea made him realize that only he can save himself so he must make wise decisions and conquer his inner fearsi In the end,…...
Life Of PiMemoryPhilosophyTiger
Fermentation Technology for Biopharmaceuticals
With the recent boom in the global demand for biopharmaceuticals, the importance of fermentation technology in meeting this growing demand is now more important than ever. In this article, we discuss the applications of fermentation technology in yielding high quality biopharmaceuticals in a manner that is both efficient and economical. An overview of some of the most important and game changing biopharmaceuticals is also given, including enzymes, hormones, vaccines, monoclonal antibodies and antibiotics. The future of biopharmaceuticals is facilitated by…...
Biology
A Study on Imaging Mass Spectrometry in Biological Imaging Technologies
Imaging in the biomedical sciences has been a critical tool for scientists to understand the inner workings of the human body. Techniques such as surgeries have existed for hundreds of years to allow people to see inside the body, but in recent years, new technologies, such as the magnetic resonance imaging, or MRI, scan, have dramatically decreased the need to use invasive techniques in order to look inside the body. In addition, these scans allow vision in real time of…...
Biology
A Study of Bio-Genetics
In studying Bio-genetics, we have to evaluate three major components of Mendelian or transmission genetics, molecular biology as well as the population genetics. For instance, Mendelian biology deals with relevant information that characterizes the DNA structure and its replication, gene cloning, genomics and ethics that are involved in genetics. On the other hand, population genetics entails the arguments that were contained in the hardy-Weinberg theory. Mendelian Genetics It is through Mendel's law that we appreciate the existence of the genetics…...
Biology
Obstetrician-Gynecologist: Women’s Health Experts
Obstetrician and gynecologist (ob/gyn) are two medical specialist who specialize in women's health. They receive a combined amount of training preparing them for the practice of ob/gyn so they can be well knowledgeable in the women's reproductive organs and pregnancies. Obstetrician is someone who specializes in the process of birth and monitors the mother and her fetus. they complete such tasks as ultrasounds, medical test, diagnostics, and giving advice on prenatal care. During labor their job is to perform physical…...
Biology
Male Andropause & Sexual Physiology Changes
As adult male gets older there is the need to make them acknowledge and understand factors that will affect changes in sexual physiology, anatomy, and the stages of sexual response as it relates alteration to their sexual behavior in other to accommodate these physiological changes and facilitate continued pleasurable sex (Touhy, 2012) Andropause is a decline of testosterone in adult male, this physiological changes decrease libido during sexuality, this sexual response cycle occurs with aging, although this varies from individual…...
Biology
A Reflection on Selecting a Major in Biological Science in Psychology
As a first generation Chinese American immigrant, I have personally witnessed and experienced the health disparities in this community. For most of these immigrants, they do not speak English well; they cannot find a job easily. Thus, the level of distress increases tremendously. They are more prone to sickness. Unfortunately, these patients are often "intimidated" to see the doctors either because they fear the language barrier or they just fear the high cost of medical care in America. Having personally…...
Biology
Connection Between Psychology and Biology
As a Child, I often hear stories about how some of the patients' “ Incurable diseases" were cured simply because they chose to be happier in their lives. I knew early on that many illnesses might have to do with the emotional or psychological health of the patients. I was always intrigued, and always wanted to study Psychology. This time, I had the privilege to speak with Lauren Burger, who holds an M.A in Psychology, and is a currently a…...
Biology
The Natural Selection Impact in Evolution
Evolution is the process by which populations change over long periods. Evolution is the explanation as to why there are multiple species today. One of the main pathways by which evolution occurs is natural selection. Many scientists today highly value natural selection's impact in evolution; so much, that these scientists consider natural selection as the most important, if not the only pathway that drives evolution. These scientists, who believe in the primacy of natural selection, are part of the adaptationist…...
Biology
US Epidemic Risk & Economic Safety
Epidemiology is the study of the patterns, effects, and causes of various disease conditions in specific populations (Kjellström, 2006). It is a major milestone in the public health sector since it shapes the policy decisions and evidence practice through the identification of the risk factors for the various diseases and preventive healthcare target. It has helped in the development of the methodology that is applied in, public health studies, clinical research, and other biological sciences. Statistics shows that U.S is…...
Biology
Genetics and morphology in ruminant digestion
The style, desire, and necessity of mammals to convert carbohydrates into useful cellular energy is of great complexity. Ruminant, describes a subset of extant individuals with dual compartment digestion, wherein the individual digests with and without the assistance of bacteria and redelivers the meal for further digestion, to obtain a deeper level of nutrient satisfaction from "nutrient dense" food sources. In this instance a nutrient dense food, like grass, cannot be easily consumed and converted into cellular energy due to…...
Biology
Taraz’s Soviet Multicultural Legacy by Nauruzbayeva and Gallegos
Visiting Assistant Professor of International Studies at Trinity College, Shanara Nauruzbayeva and her husband Daniel Gallegos present the collaborative, dialogical, and site-based art project by the Artpologist Collection in Taraz. The project explores questions of belonging and identity by inviting local Taraz residents to reminisce childhood memories of their city in order to create a narrative for this ethnically diverse pan of Kazakhstan. The project resulted in an interaction and exhibition with many family photos from Taraz residents, painting and…...
AnthropologyMemoryMulticulturalismPsychology
How the Choices of Authors Make an Impact on Their Texts
All of the decisions an author makes, whether small or large, contribute to the overall rhetorical situation of their text. Whether it be the audience, purpose, or context of the text, or the word choice and sentence structure that the author chooses, they each are factors in the larger rhetorical situation. The author makes these choices based on what he or she wants to accomplish and how he or she thinks that can be executed best. For example, if a…...
ChoicesMemoryRhetoric
Cell Phone Addiction is On The Rise
Nomophobia is a word that is becoming more common. What is nomophobia? It is a 21st-century term for the fear of not being able to use your cell phone or another smart device. Cell phone addiction is on the rise. Many people cannot go without checking their phone for more than a few minutes. Adam Alter (2017), an associate professor at the Stern School of Business at New York University who researches psychology and marketing, brings up a haunting truth…...
AddictionBrainCell Phone AddictionPsychology
How to Correctly Apply Face Makeup
In order to get a flawless looking, face by applying makeup, you need to know the ways and techniques. It does not really matter what brands you use, as long as they work well with your skin (oily, dry, or combination). Some people prefer certain brands of makeup; whether they are high end or drug store. Just get whatever you want because it really is not going to matter in the long run. If you want to go for the…...
Anatomy
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