Radiobiology

Masters
Essay
Science
Pages 10 (2510 words)
Download 0
Before beginning onto the body of the paper it is first necessary to define a few terms that are going to used throughout it. Firstly, in this sense, it becomes necessary to define what radiobiology is. The following puts it as aptly as is possible.
The authors propose that radiobiology has two componential disciplines - radiation physics and biology…

Introduction

The smallest structural and functional component of protoplasm that can exist freely is the cell (Suntharalingam et al, 2005, p. 485). It is just necessary to study the effects of radiation at the cellular level to truly understand the factors that affect biological tissues. Cells are of two types - somatic cells and germ cells. Of these somatic cells have three subtypes - stem cells (cells that generate other cells through differentiation), transit cells (cells that are in the state of being transformed from one type of cell to another) and mature cells (cells that are fully differentiated and are relatively stable in that state) (Suntharalingam et al, 2005, p. 487). Somatic cells proliferate through two well-defined time periods - mitosis (M), when cell division takes place while maintaining the species chromosome number; and the period of DNA synthesis (S). (Suntharalingam et al, 2005, p. 487). Before S, there is a gap (rest period) when DNA is not yet synthesized. After S there is another gap (when DNA is synthesized but other metabolic processes are taking place). After M takes place. Thus, the cell proliferation cycle is - S M. In time this whole process is - (1-8h) S (6-8h) (2-4h) M (>1h) (h = hours). Thus, the entire cell proliferation cycle can take between 10 to 20 hrs (Suntharalingam et al, 2005, p. 487).
When there is death among non-prol ...
Download paper
Not exactly what you need?

Related papers

X-ray Photons.
The intensity of beam if then given by the number of photons passing through a given area per unit time. As the intensity is also proportional to the square of the electric field it follows that magnitude of the field is quantised (Dendy & Heaton, 1999). …
Human Behavioral Ecology
As a result a person develops behavioral strategies to solve different problems that are set by nature like arranging for food, mating, looking after the offspring and maintaining interactions with kin, offspring and other individual.…
Carbon Dioxide Emissions
The average World Carbon Dioxide Emissions were 4.53 metric tones/capita in 2005. United States of America ranked first then with average emissions of 19.54 metric tones/capita followed by Canada, Russia and UK. Developing countries like India and China lagged at the tail end then.…
Radiobiology
The smallest structural and functional component of protoplasm that can exist freely is the cell (Suntharalingam et al, 2005, p. 485). It is just necessary to study the effects of radiation at the cellular level to truly understand the factors that affect biological tissues. Cells are of two types - somatic cells and germ cells. Of these somatic cells have three subtypes - stem cells (cells that…
Charging and Discharging Capacitors
This is also true of the current through the circuit. Ultimately, at full charge, the voltage, ideally, becomes equal to that of the charging battery.…
Economic Effects of WaterPollution
In modern times, organic pollution has been on an upward trend to the environment and this is heavily because of the growing population the world is witnessing. One will find in a developed city, that there are so many people that the environment sewerage plants and sewerage plants are not able to take in all the waste and at the same time, function in its usual way. The excess waste becomes food…
polymerase chain reaction practical, Genetics.
Currently, there are hundreds of different types of PCR are being used in different laboratories but the basic principle remains same. The overall process of PCR can be summarized as follows. 1) Mixture of all constituents of PCR like dNTPs, Primers (forward and reverse), Buffer and template DNA will be mixed in desired concentration. 2) The first step is amplification, where the temperature is…