Biology essay

The sweat-gland activity is only controlled by the sympathetic autonomic nerves and this has caused interest as if this response is conditioned there is evidence to support as described by Gatchel R., and Price K. (1979, p.6) "which of the two branches of the ANS is dominant or inhibited". The two highlighted autonomic nerves systems were investigated in a lab experiment that was carried out to evaluate the hypothesis that a person, voluntarily can control blood pressure and Galvanic skin response (GSR). In this experiment the person not only tried to relax, but also to become aroused and regulate these levels for a short period of time.
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Some people argue that its outside doctors remit to be concerned about the health effects of peoples personal lives. Others feel that they go hand in hand and campaigning for a change in some of the healthcare professionals attitudes towards the biomedical model. (Block 1, p91)
Chronic diseases, Parkinsons for instance another example where the Biomedical models goal to cure isn't achievable, and the emphasis needs to lay on making the patients as comfortable as can be and if possible to keep the illness under control rather than curing it. A more social and care centered approach is needed as in these cases relatives and friends play a big role in their over all well being.
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Temperature; according to the kinetic theory as temperature increases molecules gain more energy resulting in their faster movement. Therefore in context with enzyme activity, the faster the movement of molecules the more often the collisions between the substrate and enzyme will occur over all increasing the rate at which the product is formed. However as before if temperature continues to rise the hydrogen and ionic bonds, which hold the enzyme in shape, will break and lead to the denaturisation of the enzyme. Therefore each enzyme has its optimum working temperature.
The concentration of either the enzyme or substrate; by having a higher concentration of substrate molecules there is a higher chance for the enzyme to collide successfully with the substrate and consequently speeding up the rate of the reaction. Increasing the concentration of enzymes may result in the rapid increase of the rate of reaction and the graph may level off very quickly as the reaction takes place as such a high speed.
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