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BIO May Exam

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Question:

List the properties of water according to dipolarity and hydrogen bonding

Author: Rebeca Lorena Arce Fonseca



Answer:

Dipolarity Adhesion: due to dipolarity, water adheres to other polar hydrophilic substances, such as water and cellulose in cell walls. Water draws more water from the xylem to keep the plant's walls moist and ready for gas exchange Solvent: many substances are polar and so can dissolve easily in water. Very important for metabolic processes Hydrogen bonding Cohesion: water molecules cohere to each other and draw water from the xylem of a tree to the top without breaking Thermal qualities: due to hydrogen bonding, water has a high latent heat of vaporization which makes it a great coolant, and also a high specific heat capacity which makes it a stable environment for most habitats around the world, and its high boiling point makes it liquid and therefore suitable to act as a habitat


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