2170843
Question 1
Question
Which end of a H2O molecule has a slight negative charge?
Answer
-
Oxygen end
-
Hydrogen end
Question 2
Question
What kind of bond is formed when two water molecules are within close contact of one another?
Answer
-
Ester
-
Phosphodiester
-
Hydrogen
-
Glycosidic
Question 3
Question
Cohesion is the sticking together of water molecules. It is not strong as the hydrogen bonds are very weak.
Answer
- True
- False
Question 4
Question
Water attracts polar molecules.
Answer
- True
- False
Question 5
Question
Water has....
Answer
-
A low specific heat capacity
-
A high latent heat of vaporisation
-
A high surface tension
-
A maximum density at 6 degrees
-
Hydrogen bonds
Question 6
Question
Hydrogen bonds are formed when two water molecules are close together and their opposite charges attract each other. This weak attraction forms the hydrogen bond between the neighbouring molecules.
Answer
- True
- False
Question 7
Question
At what temperature does water reach its maximum density?
Answer
-
1 degrees
-
3 degrees
-
4 degrees
-
5 degrees
-
6 degrees
-
8 degrees
Question 8
Question
Which of the following are examples of where water is important in transport.
Answer
-
In the phloem
-
In the transpiration stream
-
During active transport
-
In blood
-
During digestion
Question 9
Question
Surface tension allowed the surface film of the standing water to support aquatic insects.
Answer
- True
- False
Question 10
Question
A small amount of heat energy is required for a rise in the temperature of water.
Answer
- True
- False
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