Explain how hydrogen bonding draws water molecules together, then apply cohesion to xylem water columns and surface tension to droplets and insects.
Water is one of the most abundant molecules on Earth. Living organisms must maintain homeostatic levels of water to survive.
Outline how the cohesive properties of water benefit living organisms.
a. cohesion is caused by the polarity of water
OR
water molecules have a negative and positive end;
b. water molecules are attracted to each other
OR
water molecules are linked by hydrogen bonds;
c. (cohesion) enables water to move along stems/xylem
OR
enables a continuous column of water in transpiration/transpiration pull;
d. surface tension provides a habitat for some organisms
OR
some insects can walk on the water surface because of surface tension/other verified example;
e. energy is required to overcome the intermolecular hydrogen bonds during evaporation, so evaporation removes heat and helps animals cool;
f. hydrogen bonding between water molecules (the intermolecular attraction responsible for cohesion) contributes to water's high specific heat capacity, helping to stabilize temperatures in aquatic habitats
OR
these intermolecular attractions contribute to water remaining liquid over a broad temperature range, supporting aquatic habitats;