Essays on Enzymes

Module 1

Question 1 They explained in scientific and practical terms the issues and concepts of human sexuality contrary to the myths prevalent about the topic during their time such as the belief that the sexuality of women only played the procreation role (Rathus et al., 2016). They provided explanations and research indicating that even women responded to sexuality as men did.

They did extensive research on extramarital sexuality.

They demystified the concept of homosexuality and bisexuality. They explained and provided research data on oral sex and masturbation. They provided more and clear insight on issues regarding prostitution. Question 5 The target population, sample size, and type of ...

Abstract

Herbivores exclusively feed on plants while carnivores feed on meat. These food preferences mean that there are differences in the oral cavities, the stomach, the small intestines and the entire digestive tract mechanisms of the two types of animals. While carnivores such as lions have short digestive tracts with stronger and more acidic digestive juices because meat is easier to digest, herbivores such as zebras have long digestive tracts that are alkaline to increase the rate of digestion and absorption of plant materials. The basic difference between carnivores and herbivores is that they exclusively feed on meat and plants ...

Effect heat has on nociceptors

Nociceptors are pain receptors activated by neuropathic or nociceptive stimuli released during pain towards impending or actual tissue injury (Dubin, 2010). Nociceptors frequently are related to the perception of pain are evoked when the pressure and temperature are at a level considered extreme that can cause injuries to tissues and secondly by toxic molecule and inflammatory mediators. In most instances, these injuries concentrate on one section of the skin, blocking the flow of blood. Heat or cold assists in subsecond somatopic withdrawal response the two act as stimuli to depolarize outer terminals resulting in the production of the receptor ...

THE SCIENCE OF FOOD

Cancer and nutrition – good nutrition is very important in the management of cancer and thus healthy eating habits are encouraged during this period. Tumors that develop in the stomach or intestines may, however, affect the way the body uses the food that is ingested and may not absorb all the food, although the patient may be seen to be eating enough food. The side effects that may affect eating when one has cancer include vomiting, dry mouth, constipation, mouth sores, loss of appetite among others. Nutrition therapy is advised for cancer patients to help maintain a good quality life ...

Summarize the role of each of the 12 human body systems.

Skeletal System: The role of the skeletal system is to provide a framework to give support and act as a defense for the soft tissues within the human body.

Muscular System: The role of the muscular system is to be accountable for all movement within the human body.

Cardiovascular System: The role of the cardiovascular system is to be accountable for the movement of nutrients, oxygen, hormones, and cellular waste products all over different parts of the body. Digestive System: The role of the digestive system is to transform food into energy and basic vitamins to nourish the whole human body. Endocrine System: The role of the endocrine system is to regulate the activities of all of the ...

Multiple choice questions

Multiple Choice Questions

Increased erythropoietin production Increased heart rate Increased cardiac output Enhancement in oxygen extraction The answer for this question is b. increased heart rate. A reduction in tissue oxygenation as happens in anemia stimulates increased production of erythropoietin through a complex feedback mechanism. Increased production of erythropoietin enhances erythropoiesis in anemia. Increased extraction of oxygen in anemia is a compensatory mechanism that is mediated by an increase in 2, 3-diphosphoglycerate concentrations. Increased cardiac output is the main hemodynamic compensatory mechanism in anemia that aims to increase blood flow to the body organs. An increase in heart rate ...

Introduction

Osteoarthritis of the knee also known as the degenerative arthritis is a major and growing problem for the elder population all over the globe. Approximately, 27 million individuals have been reported to suffer from osteoarthritis by the Arthritis Foundation in United States (US). Women have been more commonly reported to suffer from osteoarthritis as compared to men. The prevalence of developing arthritis has been found to increase after the age of 45 . Although, mostly elderly population are most affected yet there are few evidences of young people suffering from it. Osteoarthritis is also commonly defined as wear- and- tear ...

Drugs can have many differing affects on people, whether their consumption leads to a positive or adverse response. All of this depends on the levels of enzymes in the body and how the variations of expression lead to these possible outcomes. The major theme of the two sources on this topic relate to the specific enzyme, CYP3A. CYP3A is a subfamily of cytochrome P450 enzymes, which serve to catalyze the addition of oxygen into molecules. Their ultimate role serves two spectrums: to convert foreign substances into less toxic products that can be eliminated from the body, or to convert ...

A proposal in partial fulfillment of the requirements for the degree of

Introduction Wheat (Triticum sp.), an extensively adapted crop, is one of the primitive and primary staple food crops in the world. Wheat is cultivated from temperate; dry to irrigated or rain-fed areas, to warm, humid or cold conditions. Such a high adaptability is attributed to its intricate genome (Acevedo et al., 2002). Wheat cultivation covers more land area compared to other commercial crops and endures to be an essential food grain for humans (Curtis, 2002). Estimations reveal that by 2050, the population of the world will reach 9.1 billion (34 percent greater than today); correspondingly, the food requirement and ...

Introduction

In recent decades, trends in diets tailored to promote weight loss have resulted in a significant increase in the intake of protein, particular in people with overweight and obesity issues. Accordingly, researchers have questioned the benefits or risks linked to the habitual consumption of “dietary protein in excess of recommended intakes” (Martin et al., 2005). In general, the primary concern has involved the possibility that diets rich in protein may increase hyperfiltration and, hence, exacerbate renal damage. Nevertheless, the potential link between protein-rich diets and renal damage has also been questioned due to an absence of adequate clinical evidence. ...

Vid30 complex participation in the degradation of CDC25 in yeast and their role in Ras/ cAMP/ PKA pathway

Background: Unicellular organisms such as Saccharomyces cerevisiae in its total life cycle is exposed to diverse and changing nutrient conditions. Thus, in order to survive and achieve a competitive advantage, it has adapted itself such that it not only uses the wide range of available nutrient sources but also the sources that are nutrient rich. It mainly uses fructose and glucose by rapidly fermenting to alcohol. In response to these nutrient conditions, the intracellular trafficking transcription and turnover of protein from nutrient transporters (e.g. Hxts) get regulated. Therefore, when the availability of the glucose increases, the expression of low- ...

And

Enzymatic Activity Blood Glucose Regulation and Enzymatic Activity Blood glucose levels in the human blood need to be balanced; as otherwise, it would lead to several fatal consequences and ill physical health. Uncontrolled blood glucose levels may damage blood vessels which supply blood to important organs such as the heart, kidneys, lungs, brain etc. Homeostasis in blood glucose levels is maintained by the coordinated efforts of two vital hormones – insulin and glucagon, along with action by certain enzymes. All these work together, to maintain homeostasis in the body according to body needs. Insulin is secreted by the β-cells of ...

The purpose of this paper is to review the etiology, pathophysiology, clinical manifestations, inheritance patterns, and recent advances in disease management of cystic fibrosis. Cystic fibrosis is a progressive and lethal disease resulting from an autosomal recessive gene (Singh, Rebordosa, Bernholz, & Sharma, 2015). The major problem associated with cystic fibrosis is the repeated lung infections that over time severely damage the lungs, scar and widen the passageways and limit the ability to breathe (Cystic Fibrosis Foundation, n.d.). As of 2013, there are an estimated 70,000 cystic fibrosis patients globally with 33,000 of them in the United States ( ...

Trace elements refer to chemicals that form parts of important enzymes found in the body of a living organism occurring in minute amounts, less than 0.1% by volume (Anonymous, 2015). Trace elements are available in the natural environment and play a critical role in the survival of all living organism. Individual elements attract molecules from the environment and convert them to various products needed by the organism. Examples of trace elements are iron, copper, zinc, manganese, boron, molybdenum, iodine, cobalt among others. However, the following paper analyzes only three of these trace elements namely, copper, iron, and zinc.

Copper

Introduction ...

{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]}

Introduction

Polymerase Chain Reaction (PCR) is a very influential technique that helps in amplifying the specific segments of DNA. This biochemical procedure is performed in-vitro that is quite different from cloning. This technique is a fusion of synthesis protocol of distinct repeated segments of DNA and thermostable DNA polymerase application that has given scientists a very potent analytical, immunological and molecular technique used prevalently in clinical laboratory science (Garibyan & Avashia, 2013). PCR is based on three primary steps that include denaturation of the template into single strands, annealing ...

Response One

My curiosity to learn more about lactate values was as a result of the fact that I usually confuse the term with lactic acid which makes me view the term from the perspective of aerobic and anaerobic pathways the seminar was informative to me since I was able to gain more insight by viewing the lactate values I terms of ABG. In the seminar, I was able to understand the value the different ideas concerning the metabolic pathways, lactic acid dehydrogenase and the importance of the values attached to each. I got to understand that lactate is a metabolic ...

Where are apical and lateral meristems found and how are they arranged in the root and stem? What role or function does the meristem tissue play in plants? Apical meristems are found at the tips of growing roots and shoots and form the tissue from which the main plant stem arises. Apical meristems are small compared to lateral meristems and are responsible for the primary growth of stems and roots, subsequently increasing the length and height of the plant. They are dome shaped and have a layered structure known as tunica and corpus. The tunica is made up of ...

Gene Expression and Signaling Class

Short Answer Different Phenotype in PTEN Mutations While PTEN is either mutated or lost in both spontaneous and heritable cancers, the p110 alpha is frequently mutated in major forms of cancer such as breast cancer, endometrial, colorectal, ovarian, and prostate cancers with a greater prevalence of breast cancers (Nagata et al., 2004). Besides, the monoallelic loss of PTEN mostly contributes to the growth of tumor in the context of other somatic mutations in which case the count of PTEN proteins correlates with the severity of cancer, an indication that PTEN is haploinsufficient in functionality. Additionally, while the gene encodes ...

Algae are a diverse group of organisms that are mainly autotrophs. Autotrophs are organisms that mainly produce complex organic compounds by using simple inorganic molecules and light or in other instances by chemical reactions. Algae can be broadly classified into two main groups which are unicellular or multicellular. Seaweeds form the largest and most complex marine type of algae (Olanrewaju, Wan Nik, & Kader, 2013). It should, however, be noted that algae can further be classified in many different ways. Below is an illustration of some of these classification representations. Green algae are classified into the Plantae kingdom and are, ...

Introduction

The treatment for multitudes of diseases and disorders resulting from genetic reasons have been ambiguous since long as the only cure could be the correction of genes and DNA in the specific region. Gene therapy gave a promising horizon to the correction of such genetic defects whereby molecular tools are applied to reverse the mutation or any other changes in the DNA. The advancing biomedical research have offered several tools for gene therapy since last few decades that have been able to perform the desired roles but with one or the other limitations. Lately, CRISPR-Cas9 based tools for gene ...

Introduction

Cystic Fibrosis (CF) is the most prevalent genetic disorder in the Caucasian population, with an incidence of 1 in 2500 births. CF is a disease that affects many organs including the upper and lower respiratory tracts, pancreas, intestines and reproductive system. Over the past 20 years, our understanding of the manifestation and management of the disease has progressed dramatically. CF was once considered a condition of childhood and there was very little expectation that children would enter adult life. However, CF has become a multisystem adult disease with the increased survival attributable to advancements in standardized treatment, introduction of ...

Assignment 2

PART A - (Total 15 marks)

Cephalexin and Gentamicin The mechanism of action of amoxicillin is focused on the prevention of the synthesis of the bacteria’s cell wall through the binding and inhibiting of the cell wall transpeptidases (Katzung, Masters, and Trevor, 2012). Specifically, it attaches to the penicillin-binding protein 1A found in the cell wall of bacteria. Then, the agent disintegrates the lactam ring to allow the acylation of the penicillin-sensitive transpeptidase C-terminal domain. The formation of the cross-link of the linear peptidoglycan strands is prevented by the inactivation of transpeptidases. Since the third and last stage ...

SCIENTIFIC OPINION ON GUIDANCE ON THE RISK ASSESSMENT OF THE APPLICATION OF NANOSCIENCE AND NANOTECHNOLOGIES IN THE FOOD AND FEED CHAIN

INTRODUCTION

Food and feed can contain of elements that have internal structures that can be measured on the nanoscale for example micelles, liposomes or micelles that occur naturally. Nanomaterials is used to categorize materials according to their size. Application of nanotechnology in agriculture can contribute to improved better pest management and protection of crops through better distribution of the agrochemicals and pesticides, growth agents or hormones. It is also applied in genetic engineering, sensors that are used in monitoring ...

Introduction

Cellular respiration and photosynthesis are vital reactions in living organisms since without the two; there would be no life on earth. Cellular respiration involves a set of metabolic reactions that take place in cells of living organisms thereby converting nutrients like sugar into adenosine triphosphate (ATP) (Osterhoudt & Barhydt, 2010). On the other hand, photosynthesis involves the conversion of carbon dioxide into organic compounds by the photoautotroph in the presence of sunlight. Most animals attain their energy requirements through cellular respiration while on the other hand; photosynthesis is performed by most plants that can make their food. These two reactions ...

{Author Name} {Institution Affiliation} {Date}

Introduction

Genome imprinting is the latest technique that has genetically modified the face of infertility; it is an epigenetic phenomenon through which the parental origin of a gene is determined based on its expression. 1 There are a vast number of genes in mammals that are marked with their parental origin, and the result of this phenomenon is a single parental allele. These marked genes are known as “imprinted.” They rely on the epigenetic machinery determining their parental identity and maintaining their origin-specific gene expression. There are 100 imprinted genes estimated in human and 200 ...

{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]} A cell is a form of the miniature factory that encloses a distinct chemical system that is involved in structural maintenance, homeostasis, energy generation and reproduction. Every organism is made of these structural living units. The cell divides and produces more cells and assists in the growth of the organism. There are two types of cells, eukaryotic and prokaryotic. Eukaryotic cells are characterised by a membrane-bound nucleus enclosing the genetic material. The Eukaryotic cells can be divided into three main parts, plasma membrane, cytoplasm, and nucleus (Cooper & ...

Introduction

There are environmental chemical processes which require light to react. These processes are called photochemical reactions. Photochemical reaction is commonly initiated due to the absorption of solar energy or light. When molecules absorb energy in the form of light, the atoms are converted in a transient excited state (Larson & Weber, 1994). This transition state or excited has completely different physical and chemical properties with the initial state of the molecule. The excited states also have more tendencies to react since they are considered stronger acids and stronger reductants that the initial state of the molecule. The excited state of ...

Rhabdomyolysis

Introduction In normal conditions, muscles grow when certain activities cause the muscle fibers to become damaged and then subsequently regrown and developed through a series of cellular process. This activity occurs during the body is at rest. In other words, the continuous breakdown is normal for growing muscles as it allows them to become bigger through the introduction of myrofibrils, or muscle fibers. However, there is a condition when the muscle fibers break down rapidly due to a number of reasons, and then they do not regrow at a corresponding rate. This condition is known in medical circles as ...

Magnesium is an essential nutrient

Magnesium is a mineral which is of great abundance in the human body. Along with enzymes, it is important for protein synthesis, muscle regulation and a host of other important cellular factors such as oxidative phosporylation, energy production which involves production and utilization of ATP and glycolysis. Additionally, Magnesium is required to assist in different cellular processes such as DNA replication and transcription and RNA translation(Barbagallo, 2012). Magnesium is found usually in the bones and or in the soft tissues of humans. Next to Potassium, it is the most abundant ion in the body. The plasma actually contains ...

4 – Nitroaniline

INTRODUCTION

4-Nitroaniline is an organic nitro aromatic compound. It is a yellow powder with a pungent odor and is highly soluble in hot water, methanol, ethanol, acetone etc (Lide 1994). Its chemical formula is C6H6N2O2. It has the following chemical structure: (Courtesy: PubChem 2016) It is also known as P-Amino nitrobenzene, P-Nitraniline or Benzene amine (PubChem 2016). It explodes on decomposition to emit toxic nitrogen oxides (Lewis 1996). 4-Nitroaniline is used in the manufacture of textile dyes such as the red azo dyes. It is also used in preparation of antioxidants, fuel additives, pesticides, pharmaceuticals and poultry medicines ( ...

Introduction

The total number of patients with cancer keeps soaring globally with around 14 million cases diagnosed by 2014. Each year, about 8 million people die of cancer-related illnesses globally. There are quite some remedies that have been proposed to mitigate in the cancer menace. This study is focused on cancer treatment by curcumin through tyrosine kinase inhibition. Curcumin is the primary coloring agent found in turmeric, a tuber of the herb Curcuma longa Lin. It has widespread use as a flavoring agent (Aggarwal and Bokyung 87). It is also well known for its medicinal value commonly used to suppress ...

Discussion

Temperature, pH and enzymes are some of the factors that are known to influence the rates of biological reactions (Almeselmani &Moaed et al. 382-3). The action of enzymes (being biological) is controlled by temperature and pH. It was hypothesized that in test tubes 2 and 4, under the influence of temperature, the reactions would be much faster because the molecules moved faster at higher temperatures. However, as attested by the results, with respect to observable color change, test tube 2 did not react to the higher temperature. Test tube 2 remained clear at different temperatures. This was attributed to ...

Introduction

At an old age, multiple medical medicals are almost unavoidable. The wellness of the body reduces and several elements may contribute to the ill condition of the individual. The elderly need special care with proper medical interventions. Geriatrics is a specialty aiming at resolving medical issues for old people. It is significant in promoting prevention as well as treatment of diseases in older adults. The medical wellness for the elderly is affected by some factors. One of the most sensitive factors influencing the participation of older individuals in medication regimen is the irresponsiveness of the body to the drugs. ...

Scientific Report

ID

Partners

TA

Abstract

The experiment was performed to analyze the outcomes of temperature on the ability of fungal and bacterial amylase to breakdown starch to maltose. Therefore, the study will reveal the optimal temperature for amylase activity. The initial steps include preparing the materials and tools used during the experiment. A timetable for comparing temperature and function was generated. Test tubes and plates were properly labeled. Iodine was needed for every spot plate so that the fungal amylase, bacterial amylase, fungal amylase and the starch solution can be added to the iodine in a time and temperature dependent fashion. Observing ...