Answer ALL parts of this question. (a) What small molecule does tubocurarine (Figure Q5a, below) mimic? HO H;C CH3 OCH3 HO, OCH3 H CH3 Tubocurarine (Figure Q5a) (b) Describe how this molecule binds to biological receptors and state whether it is an agonist or an antagonist. (c) Give one reason why the clinical use of decamethonium (see Figure Q5c) is problematic. Decamethonium

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Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.