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explain how the polarity of the molecule contributes to its biological role in the freezing point of water and the high heat capacity of water
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Asked 9/10/2010 1:27:25 PM
Updated 12/23/2022 4:02:34 AM
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User: explain how the polarity of the molecule contributes to its biological role in the freezing point of water and the high heat capacity of water

Weegy: For any given liquid, the temperature at which the liquid changes state from a liquid to a solid. [ The freezing point of pure water is 0?C. Water has the second highest specific heat capacity of all known substances, after ammonia, as well as a high heat of vaporization (40.65 kJ·mol-1), both of which are a result of the extensive hydrogen bonding between its molecules. These two unusual properties allow water to moderate Earth's climate by buffering large fluctuations in temperature. Per Josh Willis, NASA's Jet Propulsion Laboratory the oceans absorb one thousand times more heat than the atmosphere (air) and is holding 80 to 90% of global warming heat.[8] The specific enthalpy of fusion of water is 333.55 kJ·kg-1 at 0 °C. Of common substances, only that of ammonia is higher. This property confers resistance to melting upon the ice of glaciers and drift ice. Before the advent of mechanical refrigeration, ice was in common use to retard food spoilage (and still is). ]
Expert answered|tmk3103|Points 80|

User: state the function of the prosthetic group in the haemoglobn molecule

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Asked 9/10/2010 1:27:25 PM
Updated 12/23/2022 4:02:34 AM
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The function of the prosthetic group in the haemoglobin molecule is that: The hemoglobin protein's heme is a prosthetic group of a heterocyclic ring of porphyrin with an iron atom. Its biological purpose is to transport oxygen to body tissues, so when gas molecules are bound to the iron atom of the protein group, the protein's structure is altered by an amino acid group.
Added 12/23/2022 3:42:11 AM
Deleted by MsAnyaForger [12/23/2022 4:02:08 AM], Unflagged by MsAnyaForger [2/7/2024 2:15:34 PM]
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The function of the prosthetic group in the haemoglobin molecule is that: The hemoglobin protein's heme is a prosthetic group of a heterocyclic ring of porphyrin with an iron atom. Its biological purpose is to transport oxygen to body tissues, so when gas molecules are bound to the iron atom of the protein group, the protein's structure is altered by an amino acid group.
Added 12/23/2022 4:02:34 AM
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