LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water is essential to all living things. One important attribute of water allows it to maintain a constant environment within cells. Which property of water allows it to do this?
A
moderates temperature
B
breaking of covalent bonds
C
surface tension of water surface
D
expansion of water when it freezes
Explanation: 

Detailed explanation-1: -Water has high heat capacity. It takes a lot of energy to raise the temperature of a certain amount of water by a degree, so water helps with regulating temperature in the environment.

Detailed explanation-2: -Water is the medium of life. Its four key properties-thermal properties, ability to act as a universal solvent, cohesion and adhesion-help support the life processes and habitats of virtually all organisms.

Detailed explanation-3: -The hydrogen bonds between water molecules give water the ability to hold heat better than many other substances. As the temperature rises, the hydrogen bonds between water continually break and reform, allowing for the overall temperature to remain stable, although increased energy is added to the system.

Detailed explanation-4: -Water moderates temperature by absorbing heat and not changing temperature. This allows for the climate to remain more stable. Water’s high specific heat will also allow for constant internal environments within organisms.

There is 1 question to complete.