Hydroxyl College Essays Samples For Students

Chapter 8

Chemicals in action
An acid and base reaction occurs when a complete exchange of electrons between the proton donor and proton acceptor occurs. In this process a salt if formed. In the definition, a salt is a substance formed from an acid by its replaceable hydrogen either wholly or partially by a metal or an equivalent radicle. Example of salt formation
Mg+H2SO4→MgSO4+H2
Mg+HCl→MgCl2+H2
In the modern ionic theory, a salt is a compound of oppositely charged ions. From this point of view, there is no difference between NaCl and NaOH. Further, anhydrous aluminum chloride is not a ...

Introduction

The activities that take place in a living organism are mainly controlled through the use of enzymes. Enzyme refers to a molecule that is protein in nature and functions as a catalyst to speed up the rate of a given reaction. An enzyme as a protein molecule has three main characteristics. First, an enzyme has its basic function is as to increase the reaction rate and this makes most of the cellular reactions occur more than million times that they would have if the enzyme was absent. Second, almost all enzymes act in a specific manner with only one substrate in order to produce the ...

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Introduction

Parkinson Disease (PD) is a very complicated neurodegenerative condition including the motor and non-motor manifestations that lead to neuronal loss. Currently, only symptomatic therapies are available but nothing is known yet to prevent this degenerative process. This is a multi-factorial condition with multiple risk factors that includes increasing age, genetic vulnerability, and environmental determinants. All these factors mutually play a role in the pathogenic process of PD. Medical sciences have achieved major advances in understanding the process working behind PD development that are Nigral Dopaminergic Apoptosis, Protein ...

Bio Exam

Codominant traits exist when two different alleles for a genetic trait such as flower colour, and hair texture are both expressed. The expression of codominance infers a relationship between two types of a gene. In codominance, the phenotypes of both alleles inherited from the parents are expressed ("Codominance - Glossary Entry", 2016).

Genetic expression feather colors in purple penguin ("Basic Principles of Genetics: Probability of Inheritance", 2016).

With the order of dominance as pd>pm>pl>pvl a 1 dark: 1 medium ration of phenotype among the baby penguins is expected.
Marfan Syndrome is a genetic disorder that exhibits variation among affected individuals. The range of phenotypic severities is an example of variable expressivity. ...

Abstract

The prodrug design is an efficient and powerful method that can be practised in a wide range of parent drug compounds, administration routes and preparations. Its main goal is to overcome the drawbacks of regular drug compounds by effectively targeting the drug's particular site of action for improved therapy. This assignment seeks mainly to depict the different classifications of prodrugs and the role these play in drug design through the use of several examples. A brief description highlighting the modern aspects of prodrug design is also covered here.

Introduction:

Prodrugs are inactive forms of drug compounds that undergo chemical or ...

Essay Examination

Living things have distinct characteristics that differentiate them from non-living things. They respond to variations in environmental conditions for instance decrease or increase in temperature. A living thing is able to detect the changes in the environment and react in a manner that can help it maintain the normal external and internal conditions. For example, most living animals move away from high temperatures. Plants too, respond to the saline environment by excluding sodium and chloride ions. Living things also respire. As a result they take in oxygen and gives out carbon dioxides. Moreover, living things acquire nutrients and energy from the ...

- Chemistry of Cholesterol
C27H45OH is the molecular formula of cholesterol. The molecules consist of three regions: a hydrocarbon tail, a hydroxyl group, and a a ring structure region with 4 hydrocarbon rings.
The solubility of the hydroxyl group in water can be attributed to its polar nature. The 4-ring region that also comprises cholesterol is a common ring in all steroids. The rings have a carbon atom at each corner with two hydrogen atoms that extend off the ring. That is why it is called a hydrocarbon ring. The ring region and the tail region cannot dissolve in water, as they are both ...

Question 2

Non covalent bonds attach the paired bases that compliment each other. The bond serves a strengthening feature in attaching the complimentary pairs. The bases that are complimentary in the bases of a DNA are G= guanines, A= adenines, C= cytonines and T= thymines. The bonding process of bases is done when G bonds with C, T bonds with A. This is the rule for bonding of the DNA bases. These are strongly found between the base and nucleotides that are completed when the four bases interact to make a adenosine monophosphate (Audesirk, et al., 2011).

Structure of the DNA 3

The polymer of the DNA is referred ...