Biology 11 Chapter 2
Biological Molecules - 11


Biology Class 11
1. The amount of heat required to raise the temperature of 1 kg of water by 01oC is called?




Biology Class 11
2.    A large increase in heat energy results in a relatively small rise in temperature of water. It means?




Biology Class 11
3.    Much of the energy is used in breaking the hydrogen bonds, which restrict the movement of molecules, that why?




Biology Class 11
4.    How water protects organisms from rapid temperature changes and helps them to maintain their normal internal temperature?




Biology Class 11
5.    How water helps to moderate the Earth’s temperature?




Biology Class 11
6.    How water gives animals, in a hot environment an efficient way to release excess body heat?




Biology Class 11
7.    What is meant by high heat of vapourization in animals?




Biology Class 11
8.    Cohesion is the force whereby individual molecules________. Water flows freely owing to______?




Biology Class 11
9.    Which property of water is important for aquatic and other living organisms?




Biology Class 11
10.    The high heat of vapourization means that water has a?


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