Free Biology Essay Examples & Writing Tips. Page 2

566 samples

The Histopathology Laboratory: Special Stains

The Masson's trichrome is commonly used to reveal the architecture of tissues and in the preparation of frozen sections. The Masson's trichrome stain was used in the staining of normal uterus and the uterus fibroid.
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Environmental Microbiology Overview

When managed properly in accordance with the five principles of good management, they provide a number of benefits that include: Detoxification of wastewater Capturing renewable resources such as energy and water Sensing pathogens in the [...]
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The Digestive System in the Human Body

The stomach is an organ of digestion located between the esophagus and the duodenum on the left upper part of the abdominal cavity. The large intestines of the human body are located between the ileocecal [...]
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Reproductive Biology: Ovarian Surface Epithelium

The germinal epithelium was a preferred term over OSE because this outer ovarian epithelium was assumed to be the source of germ cells in embryos and adults, and besides this, pre-follicular and granulosa cells that [...]
  • Pages: 40
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Cloning of Plants at the Botanic Garden

Cloning is now considered to be an efficient means to grow plants in being the result of vegetative propagation while seeds are the result of the natural reproductive phenomenon of plants.
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Characteristics of Adult Development

The development entails the changes that are experienced at the various levels of growth from childhood to adulthood. Another influence is the socioeconomic status of an individual.
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Lifespan Development: Adolescent Psychology

Physical changes occur in the child during the period of adolescence as they hit puberty. It is known as the formal operational period and is the fourth stage in the life of the individual.
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The Digestive System and Its Functions

That is why the proper functioning of the human digestive system serves as the basis for full-fledged life support during the main processes in the digestive tract. In the oral cavity, food enters the throat, [...]
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  • Words: 952

Bacteria and Their Positive and Negative Effects

However, the described assumption is quite far from the truth, with a significant number of bacteria being not only useful but also essential to the functioning of the human body and the sustenance of life.
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Transpiration Process in Plants

Initially, the roots absorb water by the process of osmosis due to the variation in the concentration of the water level between the soil and roots.
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The Biological Basis of Sleep

The authors suggest that it needs more accurate measurement of sleep and wake pattern by the use of the electrooculogram, the recording of the movement of the eye, EEG and electromyogram, the recording of the [...]
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  • Words: 2220

Strawberries History

They are the most famous and trendiest fruits in the planet. Strawberries are also used as ingredients in strawberry tiramisu which substitutes the coffee flavor for tasty and colorful strawberry effect.
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  • Words: 1484

Bacterial Identification Through Biochemical Testing

The laboratory tests allow for the identification of the difference between gram-positive and -negative bacteria in practice. The samples were used to determine the bacteria and their type based on the results of the tests.
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  • Words: 2395

Learning Biology in the Time of Virtual Education

Thus, the paper investigates the ways of learning biology in the age of social media and virtual education. The paper addressed the ways of learning biology in the age of social media and virtual education.
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Extracellular Enzyme Production Tests

Microbes produce exoenzymes to metabolize substances in their surroundings, and these microorganisms may be used in biochemistry assays to evaluate the presence and activity of exoenzymes.
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The Origin of Olives and Their Medicinal Uses

The history of the olive tree involves numerous events, from becoming one of the leading commodities in ancient Greece Olive to being spread around the world and used in food, pharmacological, and skincare industries.
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Planting Bamboo: The Role of Photosynthesis

Lastly, I think bamboo's photosynthetic exceptionalism is manifested in the fact that light is one of the most important factors of photosynthesis, as it is a source of the necessary radiant energy for biochemical processes.
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The Function and Structures of the Human Heart

Pulmonary circulation involves the transfer of deoxygenated blood from the heart to the lungs and then the movement of oxygenated blood from the lungs back to the heart. Coronary circulation is responsible for replenishing the [...]
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Digestive Journey of Cheeseburger

The salivary glands contribute to the breakdown of the nutrients in the mouth while the pharynx directs the eats to the esophagus.
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Importance of the Brain in Human Body

The brain also provides a long-term storage memory where a reader may be in a position to recall the events that have taken place in the comprehension and the right order.
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The Pomegranate or “Punica Granatum L.”

In ancient times, the Old Testament of the Bible, the Jewish Torah, and the Babylonian Talmud describe the pomegranate as a divine fruit conferring forces of fertility, good luck, and abundance.
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Plant Resource Allocation: Materials and Methods

The nutrients obtained by the plant are used in the growth and development of various plant parts. Thus, plants have mechanisms of regulating the distribution of nutrients and biomass to various parts of the plant.
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Microbiology and Its Role in Healthcare

Microbiology, as a broad scientific field, entails an array of concepts and issues that are of pivotal relevance to health care as a whole and the science of pathophysiology, in particular.
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Origin and Evolution of Segmentation

In the article, "Origin and Evolution of Segmentation", the first hypothesis supports the independent segmentation in annelids, arthropods, and chordates. The first hypothesis predicts negligible similarities in the segmentation patterns of arthropods, chordates, and annelids.
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Recent Advances in Artificial Photosynthesis

Specifically, scientists strive to use the known and change them into "functional, efficient, synthetic systems that will tap the endless supply of energy coming from the sun".[1] Researchers believe that artificial photosynthesis can work on [...]
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  • Words: 1392

OECD-GLP Guidelines: Toxicological Tests

During and after the duration of exposure, the observational studies, biochemical analyses, hematological tests, and histological studies that were conducted on the rats show that the biological responses in the rats did not differ significantly [...]
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  • Words: 2275

Biology: Coral Reef and Its Diseases

The stresses that affect coral reefs can include changes in water temperature, differences in the amount of ultraviolet radiation they are exposed to and the amount of sedimentation and pollutants that settle in and around [...]
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  • Words: 602

Microbiologist as a Career in Bioscience

Moreover, I believe that in this way I can help people by making discoveries that can be used in medicine, agriculture, food production. This experience can help me in the future especially when I will [...]
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  • Words: 552

Common Biochemical Cycles

Carbon is also an important element for the living organisms; hence the carbon cycle which is a gaseous cycle takes place to recycle the carbon and make it available for the living organisms.
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Cane Toad: Introduction and Threat

The cane toad multiplied rapidly in a short span of time compared to other species in the same habitat. The major reason for introduction of the cane toad was to control the French Cane Beetle [...]
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Ethnobotanical Uses of Plants

For example, the Cedarwood plant native to Asia and the Americas is used topically in the treatment of skin diseases such as warts and psoriasis.
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Pros and Cons of Use of Pesticides

Use of DDT and other pesticides may cause harm to the ecosystem if not well used and thus it is advisable to approach this issue with more precaution.
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The Human Cloning Debates

Nonetheless, the scientists opposed reproductive cloning claiming that the practice undermines the uniqueness of humankind and that it is unethical to put the lives of clones in a condition of being susceptible to harm or [...]
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Falling in Love as Part of Natural Selection

Further, the science of love exhibits to us that falling in love is in fact ingrained in our physiological makeup and as a natural component of our being, we cannot help to fall in love [...]
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The Impact and Applications of Microorganisms in Human Life

Microbes can be used to prevent infections and also to improve the taste and aroma of food products. Microorganisms are also used in industrial microbiology to produce biotechnological products and the components that go into [...]
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Understanding Protists Through Sketching and Analysis

Sketching the six species of protists is helpful to provide a more in-depth understanding of how they function, feed, and reproduce. This helps to understand their role in the whole organism and the formation of [...]
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Plasmodium Falciparum Among Eukaryotic Microbes

In the human body, metamorphosis occurs, and the microorganism successively passes through the steps of schizonts in the liver, then turns into merozoites and acquires the ability to infect red blood cells.
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Lucid Dreaming: Impact on Sleep Disruption

Since sleep lucidity requires enhanced metacognitive activity, defining the meaning when discussing thinking while awake and asleep is essential, cognition is the capacity and capability to function, in this case, while dreaming, in particular, are [...]
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Protein Sequence Determination

The peptide sequence was determined by subtracting the mass of two peaks that are not adjacent to each other starting from the right side of the provided mass spectrum graph, adjusting for C and N [...]
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Identification of Escherichia Coli Bacteria

Identifying microbes is the process of determining the species or type of a microorganism based on the study of cultural, morphological, biochemical, serological, and pathogenic properties.
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Bacteriophages in Modern Science

The use of bacteriophages does not limit the use of other drugs and does not affect their effectiveness. It is one of the problems of preclinical studies in many animal models and clinical studies in [...]
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Biology of the Invertebrates: Malaria

They have rapid reproductive rates and the ability to switch sexes according to their environment and the contents of the trunk in which they find themselves, in contrast to the malaria parasite.
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Escherichia Coli-Related Articles Review

The goal of the current study was to identify the frequency of Escherichia coli in poultry meat, the sequence of antimicrobial resistance it exhibited, and its molecular mechanism.
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Traps: Artificially Designed or Modified Cells

CAR protein receptors were created on modified red blood cells that attracted the virus and allowed it to enter the cell, but this was then a dead-end strategy for viral replication.
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Molds vs. Yeasts: What Are the Differences?

Secondly, superficial mycoses affect the topmost layer of the skin and hair, whereas cutaneous mycoses affect deeper layers of the skin, hair, and nails. Systemic mycoses infect vital organs, whereas superficial mycoses can be found [...]
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The Amplification of DNA Samples

The isothermal amplification of nucleic acids represents a simplified process that allows for the quick and efficient accumulation of nucleic acid sequences in an environment of constant temperatures.
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Biodiversity: Aspects Within the Sphere of Biology

Finally, living objects consist of cells, which are the basic units of their function and structure. The viruses' structure depends on which nucleic acid is included, which denotes that there are DNA and RNA viruses.
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Voltage-Gated K+ Channels: Key Functions

K+ channels are a family of related proteins found in the neurons' plasma membrane and are responsible for controlling the flow of potassium ions in and out of the cell.
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Literature on Invasive Plants in the United Kingdom

This essay entails a literature review to understand the nature, impacts and control of the "big four" invasive plants in the United Kingdom: Japanese knotweed, Himalayan balsam, giant hogweed, and rhododendron. The outline for the [...]
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Bacteria Classification and Assessment

A Gram stain is a common test to classify bacteria in blood, urine, or the infection site. In other words, the goal of antibiotics is to support the immune system in the treatment process.
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The Human Family Tree Development

Thus, the investigation of the existing lines of descent in a human family tree allows scientists to determine the worth of connection dots and differences and similarities between the ancestors.
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Streptococcus Pyogenes Overview

Streptococcus pyogenes, a beta-hemolytic bacteria, is officially a member of the Streptococcaceae family, which is regarded as the most harmful member of the entire genus due to the vast range of illnesses associated with it.
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A Light Microscope: Function and Usage

In the optical microscope device, a beam of light hits a specimen located on a slide and then travels through a system of mirrors into the objective. The use of optical circuits inside the eyepiece [...]
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Menopause and Associated Anatomical Changes

Menopause is characterized by a reduction in the production of certain hormones, such as estrogen and progesterone, which affect the anatomical structure of organs such as the uterus and ovaries.
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Metabolic Responses to Exercise

Recent discoveries bring up new insights on the processes by which muscles connect with other organs and modulate the positive effects of physical exertion due to the application of molecular approaches to the biology of [...]
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Operant and Respondent Conditioning

In respondent conditioning, the stimulus-response dynamic is unidirectional: the US, often not controlled by the organism, elicits a response, but the organism cannot produce a subsequent stimulus since responding does not affect the presentation of [...]
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Yersinia Pestis: Mechanism of Streptomycin Resistance

This experiment makes a significant contribution to the study of the problem of resistance of the bacterium responsible for the occurrence of plague, investing in the development of a more effective method of treatment.
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“Pécis: Sociobiology” by C. Nickerson

The article has the following ideas that explore the essence of sociobiology. Of particular interest is the issue of gender inequality that arises from the field of sociobiology.
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Energy Balance and Expenditure

Energy density, which is typically expressed as the number of calories in a gram, is the quantity of energy or calories in a specific weight of food.
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Aspects of Lactic Acid Bacteria in Wine

Virdis et al.argue that they are frequently the result of yeast and microbial metabolism and are changed and generated in wine throughout the fermentation.
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Lucid Dreams Aspects Nature Analysis

Lucid dreams are dreams in which a person realizes that he is dreaming but can be an active participant in the scenes taking place in the subconscious.
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