Water cohesion and adhesion water

Question 1

Hydrogen bonds between water molecules allows for strong …………. between water molecules

Answer 1

Cohesion means that water likes to stick to itself

Attracted to themselves molecules

Question 2

This allows columns of water to move through

Answer 2

the xylem of plants and through blood vessels in animals

Question 3

This also enables surface tension where a body of water meets the air, these hydrogen bonds occur between the ………..

to create a sort of film on the body of water (this is what allows

Answer 3

occur between the top layer of water molecules

s insects such as pond skaters to float)

Question 4

Water is also able to hydrogen bond to other molecules, such as ………….. which is called …………….

This also enables water to move up the xylem due to ………..

Answer 4

cellulose

Adhesion stick to other things waters attracted to other substances

transpiration

Question 5

It is important to know where the hydrogen bonds form between water molecules (oxygen of one water molecule to the hydrogen atom of another). Also, when discussing the role water has in living organisms remember to mention the ‘why’ in relation to its properties (ie. it is an excellent solvent due to the polar nature of water molecules).