Free Biology Essay Examples & Writing Tips. Page 4

The movement of ions across the membrane is regulated by proteins that span the phospholipid bilayer in the form of pores, channels, and gates.

The procession and interpretation of the sensory organs is then effected by the nervous system to facilitate an understanding and interpretation of the surrounding. Cephalization consists of the actual concentration and accumulation of the functions [...]

One can argue that this mechanism is critical for the survival of this mollusk. These are some of the main issues that can be distinguished.

As far as the size of the bacterium is concerned, most of the specimens of P. Finally, cystitis and prostatitis can be viewed as a possible prognosis in the case of contracting P.

At the onset of the disease outbreak, the immediate number of death cases amounted to 774. The most notable spread of the disease is through the air.

The null hypothesis would be that increasing the daily intake of water to eight glasses a day has a positive effect on the body, especially on the skin.

First, the relationship between plants and fungi shows that plants depend more on fungi than fungi depend on them. Considering that more than 90% of all plant species on earth cannot live without minerals and [...]

This demonstrates the popularity of chickpea and its application in various areas of the economy. The popularity of chickpea has grown significantly, and this has led to its demand in different parts of the world.

It leads to a lack of surviving members of some species to reproduce in order create a new generation of the extinct species.

By definition, photosynthesis is a process whereby light energy is converted to chemical energy in the presence of CO2 and water.

A majority of the energy consumption in the body is as a result of muscular activity. The ATP that is produced is adequate for the functioning of muscles.

To illustrate the main principle of the mechanism, authors have presented a simple scheme according to which the device encodes information and presents to the receiver.

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 [...]

A bacterium is one of the organisms that undergo asymmetric division of cells hence does not undergo aging. In this bacterium, it is evident that the DNA process stopped because the stalk cell turned out [...]

Some of the diseases are spread when the agents are passed on from animals to humans through a process referred to as zoonosis.

However, the key challenge lies in maintaining the ability of the propagation of stem cells as well as deciding the type of cells that are formed.

The striped dolphin is a highly susceptible host of the bacteria and poses and the most potent reservoir and source of transmission of the infectious agent.

The healing process of this material is almost similar to that of the aforementioned self-healing concrete except for the fact that the polymer uses the Grubbs' catalyst during the healing process while the self-healing concrete [...]

The researchers are fascinated by the ability of this compound to be detected by the taste buds of certain individuals and remain undetectable by others. 1To this end, the compound is of profound interest in [...]

Second, the protocol was modified by raising the temperature required for labeling the bacterial cells."The third modification was the addition of 0 8% ethylenediaminetetraacetic acid to the A31 buffer used in the pretreatment of milk [...]

Circulation is "the movements of body fluids inside the animals from the place of formation to the place of its utilization" in a one-celled animal, cells exchange materials directly with the environment; this implies that [...]

In fact, low phosphorus and nitrogen supply in soils initiates the formation of these structures; with increase in supply of phosphorus and nitrogen leading to suppression in dauciform root formation. Caustis blakei is one of [...]

In this process molecules of carbon dioxide gas and water are combined in the presence of the solar energy and chemical energy is formed.

The aim of this experiment is to identify the pathogen responsible for Urinary Tract Infection in the patient and to prescribe suitable medication for the condition.

The stink bug is a pest which is commonly known as the Brown Marmorated Stink Bug and is a Hemiptera that infests plants that bear fruits, causing damage on leaves and fruits.

The experiment was designed to investigate the impact of temperature on the rate of Glycolysis. The experiment results demonstrated that the rate of Glycolysis increases as temperature increases which resulted in the acceptance of hypothesis [...]

Due to a decline in number in the 1980s, the bird was declared as an endangered species under the Australian Environment Protection and Biodiversity Conservation Act 1999 and the International Union for Conservation of Nature.

Although the males have bigger muscles than the females, the latter have better blood flow during exercise, and use one hundred percent of the fibers in their muscles as compared to the former who use [...]

The goal of the experiment is to get the most suitable temperature that will allow for growth and the temperatures where there would be little or no growth of the microorganisms.

The next step in the experiment was also significant in ensuring the chemical components in the extracts are known and that the anti microbial activity is attributed to each of them separately.

The sampling of Macroinvertebrate constitutes a very important aspect of analyzing a habitat due to the fact that Microinvertebrates are fundamentally vital in defining the health of streams where they habour.

It is the difference in concentration of water across a semi-permeable membrane drives the process. The process is facilitated by the disparity in potential of water across the semi-permeable.

The continued cases of robbery, murder and rape have been countered with the adoption of various forensic procedures to bring the crime perpetrators to book. The collection of hairs and fibres is usually the first [...]

One of the major mechanism through which gene expression is altered is addition where a base pair is added to the normal sequence hence changing the specificity of the protein that the code specifies.

The collection of relevant information gave the basis for the introduction of the organism about the evolutionary development and analysis of the characteristics typical of already existing species.

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 [...]

The most common of the implications of Clostridium perfringens is the gas gangrene which is the death of affected tissues starting with a wound in an anaerobic region especially in the limbs.

One of the crucial enzymes in the food industry is external invertase from Saccharomyces cerevisiae. The key functional state of the external invertase is a homodymer with a molecular mass of 270 kDa.

The vehicle for the test item was water and the test item was in powdered form, 98% pure and was stored below -200C and had an expiry date of Aug 2011.

The retention of IVCA in the circulatory system is based on the capacity of IVCA to exhibit reversible binding that contributes to the establishment of dynamic equilibrium.

This is after the realization that the present methods used fail to inculcate a learning culture where students become critical of science, including learning how to analyze scientific concepts and applying the knowledge learned to [...]

Studies that have been conducted led to the observation of a spectacular difference that the number of red muscles was directly proportional to the length of the fishes.

With the help of a pipette, a measure of 100 L of E.coli culture was spread at the surface of plates of minimal medium agar.

The results reveals the existence of SMOM in all the cases studied healthy subjects and ill patients in the form of fatty acids, phenyl-carbonic components, aldehyde substances, and alcohol, which are never usually synthesized by [...]

In the determination of the concentration of proteins in different body tissues, we carried out various laboratory experiments; in which various body tissues were tested for protein content.

As the population of the world increases on a daily basis, it is becoming more and more important for researchers and other stake holders such as government bodies and members of the medical community to [...]

Since the transfer takes place in a reaction there is always emission of energy. It is the main distinction in genome.

Lewis' language and the art of comparison he uses, bring this book to a height where it can be proudly called Poetry of Biology.

One of the main classes of vertebrate tissues is the nervous tissue. Glial cells are responsible for development of myelin sheath and preservation of homeostasis in the neurons.

The na ve T cells in the secondary lymphoid; when they encounter an antigen presented on MHC of dendritic cells, they differentiate and proliferate into effector T cells, CD8 or CD4 T cells depending on [...]

Some of those outstanding responses that attempt to define biotechnology include the application of integration of biology and technology, a promising field that deals with using organisms, and a field of science that uses biological [...]

It should be pointed out that the charge of the buffer is never equal to that of one of the proteins.

A slide cover slip was placed on top and then the slide was observed under bright-field microscopy at the different magnifications of the microscope.

After a few days, the researcher noticed that the plant placed in the bedroom had grown abnormally tall and tended to bend towards the window.

By revealing the information about the details of photosynthesis, Gust encourages people to investigate and to develop the innovated techniques thus applying them to the problem solution in the different spheres of life.

His main contributions were as follows: chemical changes like fermentation from the vital activities of yeasts and bacteria, a demonstration that air contains micro-organisms, the discovery of anaerobic life and terms aerobic and anaerobic, and [...]

This theory states that wings developed from a section of the legs of wingless insects. According to Carpenter, wings developed from gills through the evolution of gene expression with similarities between winged and wingless insects.

The challenge that arises here is the understanding of how the selection is acting on the sex ratio of invertebrates. Other secondary sources of information that were used included the searching of the web and [...]

The study of the morphological and anatomical characteristics of the various organs is very important for the biological study of the plant's functioning and processes.

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 [...]

The coronary circulation involves the movement of blood through the tissues of the heart while the systemic circulation involves taking blood to all the rest of the body tissues and back to the heart".

This paper elaborates the living conditions of the marine fungi, the studies that have been done so far on them, and the possibilities for the future finally discussing the results of the study being done [...]

After treating the outer membrane proteins with tetracycline or ampicillin and determining the differential properties for resistance offered at different concentrations of tetracycline minimum inhibitory concentration 10 and ampicillin 10. Results showed at the MICs [...]

Such pathogenic bacteria are transferred into the human body through milk intake, and at times antibiotics that are administered for the treatment of infection do not succeed in destroying the pathogens, causing a threat to [...]

Each laboratory pair performed a Gram stain using their culture tube to determine the relative proportion of these bacteria at the beginning of the experiment. The significant decline in abundance of gram positive bacteria at [...]

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.

The results showed that the rate of release of oxygen determined the rate of rising of the leaf segment subject to utilization of carbon dioxide proving that the evolution of oxygen could be used to [...]

The fundamental theory of the study proposed that the time, space, and opportunity of the fishes were the main determinates of the reproductive pattern of male fishes in the context of sperm competition.

Based on this idea and the observation that the absence of flight is beneficial to some species of stoneflies the researchers asked the question if insects lose flight before they lose their wings.

In plants, important cells such as the parenchyma cells help to store materials and support the process of photosynthesis. Cells found in the leaves of most plants fundamentally assist the plant to absorb the necessary [...]

Thus, the biogeographic study's first question should be related to the search for the mechanism of dispersal of butterflies so that one of the subspecies turned out to be geographically isolated.

The identification of biological material during the study of local and co-located biocenosis is of serious importance to biogeographers. It seems clear that this technology has a high potential for biogeographical studies because PCR allows [...]

The study of the Southern Hemisphere is of serious importance in Earth research because this area is associated with attractive mechanisms of dispersal of living beings and geographic and thus reproductive isolation of species.

It is scientifically proven that race is not a reliable shortcut or proxy but simply a distraction that does not let see the real and the whole picture of one's condition and situation.

On the contrary, it is the unique features that form the body of V.mandarinia that determine the increased research interest and justify the environmental position of the hornet as a killer.

As a rule, the foundation of transgenic technologies lies in the plane of change in the genome of the reference species.

The described process of alternating the stable state of the species and its rapid replacement with a new one was called punctuated equilibrium.

In the animal world, they compete for the opportunity to mate with females, since the continuation of their genus depends on the number of mates.

It is essential to note in advance that the 16s rRNA nucleotide sequence of the gene was obtained using the open Nucleotide database owned by the National Centre for Biotechnology Information, which allows finding the [...]

On the one hand, this is an opportunity to become parents for infertile couples, on the other hand, the ART industry acts as a new type of business and, therefore, we can talk about the [...]

As a result of mutations, avian influenza viruses sharply change their biological properties and acquire the ability to overcome the host barrier with direct infection of people bypassing the intermediate host.

From all groups of microscopic organisms, representatives of the bacterial and archaean world do not have a nucleus, for this reason, bacteria and archaea are considered prokaryotic cells.

However, according to Bhella, no organisms can be entirely independent of the environment, and life at its core is interdependent. The fact that viruses evolved with other creatures is enough to state that they are [...]

Moreover, the fungus helps to relax the excited state of a person, and the most daring studies show that Lion's Mane can influence the regeneration of brain cells.

The adenohypophysis cells in the pituitary gland are then stimulated by the Gonadotropin-Releasing Hormone to secrete both the Follicle Stimulating Hormone and the Luteinizing Hormone.

One of the motor systems of the central nervous system is called the pyramidal motor system, and its bases are mostly in the precentral gyrus of the cortex.

Sexual reproduction has proven to be the best strategy that permits the combination of varied genes that allows the offspring to be more flexible and adaptable to changes in the environment. The large size of [...]

The research focuses on the control of feeding through the food canal and food pouch and the excretion of pseudofaeces from the digestive tracts when food supply levels are high.

The menstruation is the end of the cycle when the woman is not impregnated, while the production of semen is the beginning of a potential new life.

The purpose of this experiment was to determine the electrogenic potential of three different Enterobacteriaceae. 2 ml of Enterobacter aerogenes culture was added to the agar in the anodic compartment and allowed to set.

The purpose of the analysis was to estimate the initially "infected" samples. The Scheme of Students' Samples Mixing The standard indirect ELISA protocol was used for the analysis.

The tube cap was removed with the little finger of the dominant hand, and the tube mouth was incinerated in the flame.

One of the challenges that have emerged with the advent of genetic enhancement is the inability to ensure that all people have access to the technology.

The five swellings are the Telencephalon, the Diencephalon, the Mesencephalon, the Metencephalon, and the Myelencephalon". The brain of a human being is in the center of the nervous system.

The parameters used in the research were mean mass remaining, edge of the forest, age of the forest, and the abundance of the invertebrate organisms.

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.

Neurotransmitters transmit information to adjoining cells such as neurons."Neurotransmitters also operate from the brain and spinal cord to organs of the digestive system, respiratory system, endocrine system, excretory system, etc, and back"."Regulating neurotransmitters in the [...]

Siegelman and Rider also describe the physical growth in terms of proximodistal concept where the internal organs and chest are said to grow faster during the early period of infancy and then the growth spreads [...]

The further development and distribution of bioengineered corn will provide additional food sources in which to feed the masses of today and future generations of people as well.

According to the information presented in the book the energy level and the biorhythm of a person can affect the degree of attention.

To confirm the answers for the self-test, click on the organelles to see the name of the organelle and its function.

It has been identified that the cycle of the moon takes place within the period of twenty-nine days and menstruation in an average woman occurs in the same period."A woman's blood and hormonal cycle follow [...]

A psychophysical hypothesis, known as the theory of Signal Detectability uses a blend of statistical choice theory together with the idea of perfect observer modeling the sensitivity of the observer to events that are in [...]

A zygote is developed as a result of the fusion of two sex cells the sperm and ovum. The basic element of a chromosome is DNA and gene is the major component of the DNA.

The leaf of the plant is the part of the plant which is more frequently exploited in the form of a remedial herb, although the root of the plant also exhibits medical properties.

The foliage and shoots are medically used in the form of antispasmodic, styptic, sudorific, soporific, narcotic, depressant, and vasodilator in addition to being used in the healing of some female complaints.

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.

The eyes of the ospreys are bright yellow, and it has a black beak. In contrast to other predatory birds, the ratio of the Ospreys almost completely consists of fish.

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 [...]

Further differentiation of the bacterial unknowns was performed through additional colorimetric tests, resulting in the validation of the identity of each bacterial species.

One of its unique features is large zones of hemolysis because of the complete disruption of red blood corpuscles and as a result release of hemoglobin.

Thus, the concentration of vitamin C in each solution influences the number of iodine drops that are needed in order to change the color of the homogenate solution to black.

Their testicles develop fully they can be able to produce sperms, and their penis grows to a full size and they can get erections.

Man's weight in the equilibrium is determined by such things as the number of fishermen, the efficiency of their gear, the wages that a fisherman is willing to work for, the price the public is [...]

The genes were allowed to express as dsRNA under the promoter control of T7 RNA polymerase. 300 and 900 bp DNA's of pure pL4440 preparation was not present in the lysate.

Vitamin A found in fruits and vegetable is referred to as Provitamin A carotenoids, these vitamins A are converted into retinol in the body where one molecule of beta carotene produces two molecule of Vitamin [...]

It is the reaction of free amino groups like amines, amino acids, peptides and proteins with reducing sugars in the presence of heat and during storage.

The occurrence of this channel occurs due to the existence of a preserved heteromeric membrane protein complex. The result of this is forward translocation movement.

The function of this system is to make sure of the conformity and maturity of proteins produced by blocking the deliverance of incompletely folded or misfolded proteins, which are then destroyed in the cytoplasm.

The objective of the experiments was to remove the EGFP gene from the pEFGP vector and to clone in another vector, pET28b, derived from bacteriophage T7 vectors.