1Why is water important for living organisms?
Water is vital to living organisms.
2What percentage of a cell's content is water?
Water makes up about 80% of a cell’s contents.
3In what kind of reactions is water a metabolite?
Water is a metabolite in important reactions.
4Why is water important in metabolic reactions?
Water acts as a solvent.
5Where do most metabolic reactions occur?
Most metabolic reactions take place in solution.
6How does water contribute to temperature control in organisms?
Water helps with temperature control.
7What property of water helps with transport in plants?
Water molecules are cohesive.
8What is the chemical formula of water?
Water has a simple structure with H2O.
9What is the charge distribution on a water molecule?
Water molecules are polar.
10What kind of bond gives water its unique properties?
Water molecules form hydrogen bonds.
11What two reactions commonly involve water in metabolism?
Condensation and hydrolysis involve water.
12What does hydrolysis require to occur?
Hydrolysis requires water to break bonds.
13What does condensation release?
Condensation releases water to form bonds.
14What property of water allows it to cool organisms through evaporation?
Water has a high latent heat of vaporization.
15Why is water useful for maintaining stable temperatures?
Water can buffer temperature changes.
16What property of water allows it to resist rapid temperature changes?
Water has high heat capacity.
17What makes water able to dissolve many substances?
Water is a good solvent for ionic substances.
18Why do ions dissolve in water?
Ionic compounds dissolve in water due to its polarity.
19What is cohesion?
Cohesion is the attraction between like molecules.
20How does cohesion help with water transport in plants?
Water’s cohesion allows it to flow easily.
21Why does water form droplets when in contact with air?
Water has high surface tension due to cohesion.
22What enables some insects to walk on water?
Pond skaters can ‘walk’ on water.
23How does sweating cool down organisms?
Sweating helps organisms cool down.