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Negative feedback mechanisms - Essay Example
Author : lebsackfleta
Pages 5 (1255 words)
What are the negative feedback mechanisms and why are they important to health.Answer: The negative feedback mechanisms of a living organism are the mechanisms that reduce or suppress the original stimulus, given the effector’s output…
What are the negative feedback mechanisms and why are they important to health.Answer: The negative feedback mechanisms of a living organism are the mechanisms that reduce or suppress the original stimulus, given the effector’s output.Thermoregulation, osmoregulation and glucoregulation are few examples of negative feedback mechanisms. The importance of negative feed back mechanisms is that they provide a negative feedback loop to keep conditions of a living organism within tolerable
limits and to prevent it from a sudden severe changes.Negative feedback decreases the deviation from an ideal normal value, and is important in maintaining homeostasis. Most endocrine glands are under the control of negative feedback mechanisms (Scanlon & Sanders, 2003, pp. 8-11).Question # 2.i Explain what happens when an ATOM becomes an ION.Answer: Generally an atom has a neutral status due to the fact that the number of protons in the nucleolus are equal to the number of electrons revolving around that atom’s nucleus. Nevertheless some times it happens that due to some external factors an atom or a group of atoms undergoes either an efficiency or deficiency of one or more electrons hence a positive or negative charge appears on an atom. This positive or negative charge caring entity is termed as an ion. ii: Name two cations and two anions found in body fluids. Give the correct notation and name for each ion. ...