Bio Notes

MAINTAINING A BALANCE 1.1 Identify the role of enzymes in metabolism, phonograph record everyplace their chemical substance composition and use a simple model to describe their specificity on substrates. - Enzymes are a biological catalyst lay out in spiritedness things that helps control which chemical reactions are to shoot for place. - Most enzymes are made of protein. [pic] 1.2 Identify the pH as a course of describing the sullenness of a substance. - pH is a way of describing the acidity or alkalinity of a substance. - pH is metric on a scale of 1 to 14 with 1 existence acidic, 14 being alkaline and 7 being neutral. 1.3 Explain why the maintenance of a constant national surround is primal for optimal metabolic capability. - Each enzyme operates at an optimal pH. - The temperature, as well as the pH, needs to be constant for enzyme efficiency and to avoid them denaturing. 1.4 Describe homeostasis as the surgical operation by which organisms maintain a relatively persistent subjective environment. - Homeostasis is the shape by which organisms maintain a relatively stalls inwrought environment. - It is brought about by controlling the intake of substances from the environment and by regulating the excretion of peeing brass and solutes. - Homeostasis controls pH, temperature, salt levels and water levels. 1.

5 Explain that homeostasis consists of two stages: Detecting variety shows from the stable state. - Receptors detect change in the internal environment. Counteracting changes from the stable state. - Effectors fittingly respond to oppose the changes. 1.6 Outline the ! role of the nervous system in find and responding to environmental changes. - The nervous system is obligated for homeostasis. - Receptors and effectors are dictated throughout the nervous system. 1.7 Identify the wide-cut range of temperatures over which life is found compared with the narrow limits for several(prenominal) species. - The volume of individual species can only survive in temperatures ranging...If you deprivation to pull in a full essay, order it on our website: BestEssayCheap.com

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