Biology with citation Essay Example | Topics and Well Written Essays - 500 words

Biology with citation - Essay Example However, when oxygen is present in a very less quantity inside the muscle cells, they temporarily convert pyruvate into a substance called lactate, which allows glucose breakdown for energy. This is also called as anaerobic energy production and as a result lactic acid is accumulated inside the muscle cells. Well, I was gasping because, I needed more oxygen to supply to my body cells for aerobic respiration and my legs were shaking because of a freight hormone, adrenaline – it is released when one feels some kind of fear, for example, examination fear in this case. In addition, the lactic acid accumulation increases the acidity of the muscle cells and disrupts other metabolites, and the muscle strains occur. 2.Deltoid is a three-headed muscle that caps the shoulder. The three heads are anterior, lateral and posterior heads. The anterior head is attached to the humerus, the lateral originates on the collarbone and the posterior head originates on the scapula. The deltoid muscle is a mover and a stabilizer, as it lifts the arm up and it also helps press the end of the upper arm bone into the shoulder socket. Since it has got three heads, the muscle can easily extend and flex the arm. 3. Tetrodotoxin (TTX) is a poisonous chemical found mostly within the liver, ovaries, intestines and skin. This chemical is found in Fugu – a puffer fish. The fish is really tasty but it may contain poisonous parts if sold by unlicensed vendors and unskilled preparation of puffer fish. TTX chemical is heat stable and its poisonous nature is not neutralized even after cooking fish. TTX binds to and blocks Sodium channels found on tissues such as nerves and muscles. The blockage of sodium entry through these ion channels makes these tissues non-functional. If a person consumes such toxins, the severity of the symptoms depends on the amount of TTX consumed. Since there is no antitoxin available against TTX, the treatment is largely supportive by

A Theoretical and Conceptual Critique of chapter 5 from Jeffreys. S Essay

A Theoretical and Conceptual Critique of chapter 5 from Jeffreys. S. 1997. The idea of prostitution. Spinifex. Melbourne - Essay Example Other countries consider it a misdemeanour and still others regard it as a crime punishable by death. Despite the laws made to control or regulate the process of prostitution, the idea itself and the associated questions of choice as well as empowerment remain unanswered. It is therefore important to understand the idea to appreciate the social impact of prostitution. Jeffreys (1997) discusses this idea at length and also presents several different viewpoints as well as his own about prostitution being a choice which women are allowed to make in this time and age since they should have control over their own bodies. This choices comes with the understanding that the business they are about to enter may have its own consequences and if the governments of their location recognize the issues surrounding their problems it would be beneficial for all concerned parties. For example, if the government can regulate the process and even gain tax benefits from legalized prostitution there may be a net positive social impact of the practice. Jeffreys compares the choice of prostitution with other choices that women may make in this time and age. For example, he mentions â€Å"reproductive surrogacy and breast implants (Jeffreys, 1997, pg. 130)†, as two choices which women are allowed to make without too many questions being asked which leads us to consider prostitution as an active choice as well. However, the idea of making prostitution a choice comes with a dangerous connotation of not drawing the line anywhere at all. For instance, a person may say that taking cocaine is a choice, using marijuana is a choice even child pornography and paedophilia is a choice. In absolute terms, they may be choices indeed since many people choose not to indulge in those activities even if they have the opportunity to do so but the choice is a conscious choice since they know what impact their actions can have on themselves and society as