OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An individual cell of an entire multicellular organism may be between 70% to 90% water; moreover, cells and organisms resist rapid temperature change and maintain homeostasis. This important characteristic is based on what property of water?
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One water molecule can covalently bond to another water molecule
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The strong ionic bonds between water molecules
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The low vaporization of water
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The high heat capacity of water
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Explanation:
Detailed explanation-1: -Homeostasis: maintain relatively constant internal physical and chemical conditions.
Detailed explanation-2: -Evaporation has a cooling effect. When a molecule evaporates it separates from other molecules in a liquid and becomes a vapour molecule. Large amounts of heat are needed to evaporate water, because H-bonds need to be broken. Sweating is an example of using water as a coolant.
There is 1 question to complete.