FutEUre Food Prague: Why Is Water Essential

Many scientists entertain the possibility of life existing on worlds without water.

• True

• False

The chemical known as H20 is a simple molecule composed of two small positively charged ..... atoms and one large, negatively charged oxygen atom.

Choose the correct statement.

• Water often helps other molecules to break apart.

• Water often helps other molecules to stick to each other.

Water is known as the "universal .....".

What is the so-called "cohesion"?

• the attraction of molecules for other molecules of the same kind

• the attraction of molecules for other molecules of different kinds

The process in plants that requires water and creates sugars from sunlight is called .....

Could there be strange forms of life out there that don’t require water?

• Yes

• No

"Biology is really all about the interactions of molecules in and with water." Who is the author of this quotation?

• Philip Ball

• Albert von Szent-Györgyi

While other substances have similar dissolving power to water, they do not have its chemical stability and its ability to neutralise strong acids and bases.

• True

• False

The ..... of water also helps the formation of the delicate membranes that encapsulate all living cells.