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What role does the first law of thermodynamics play in living organisms?
Wiki User
∙ 11y ago
Because living organisms have to expend energy in order to be alive, they require an input of energy - i.e the have to consume some source of energy ("eat") in order to survive - otherwise they run out of energy and die.
Wiki User
∙ 7y ago
Wiki User
∙ 11y agoThe first law says that energy can't be created or destroyed. This is true everywhere, including in biological systems. So living things need to get their energy from somewhere. Plants get it by photosynthesis (absorbing the energy in sunlight). Other organisms get chemical energy by eating.
Wiki User
∙ 11y agoOne of the principle characteristics of living organisms is that they change and/or cause change. All of those changes require the expenditure of energy. The first law of thermodynamics states that the energy had to come from somewhere. It does not just magically appear to meet the needs of living organisms. As a result, living organisms have to keep taking in energy in order to survive. That may be in the form of consuming food or by absorbing energy from the sun (think photosynthesis) but they have to obey the first law.
Wiki User
∙ 12y agoThere are several ways that the 2nd law of thermodynamics is stated. The kelvin statement say that no process is possible where the sole effect is the total conversion of heat into work ie you can never make an 100% efficient engine.
Another statement is by Clausius. He said that no process is possible where the net result is the flow of heat from an object at temperature T1 to an object at temperature T2 if T2>T1. This means heat can only flow from hot to cold.
The entropy statement says that the entropy of an isolated system cannot decrease which prevents things (classically anyway) from spontaneously forming
Wiki User
∙ 8y agoThe first law of thermodynamics is important because it is a core concept of physics . It says that energy can neither be created nor be destroyed. Energy can only be transferred into or out of a system.
Wiki User
∙ 13y agoThe organism ultimately must obtain all of the necessary energy for life from its environment.
Wiki User
∙ 12y agoBecause it's a core concept. Energy don't get transferred or transformed without interactions.
Wiki User
∙ 10y agoti introduces the concept of internal energy and it tells that one form of energy can beconverted into another form
Wiki User
∙ 7y agoThe importance of thermodynamics is quite fundamental - for example, all living beings need energy, and once the energy is used up, it becomes unusable energy.
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