Question

“Water is absolutely essential for life”. Explain.
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Answer 1

Answer:

• Water is the chief and major constituent of protoplasm, thus it is necessary for normal functioning growth and development.

• Item serves as aqueous medium for various metabolic reactions.

• Water has high specific heat, high heat of fusion and high heat of vapourization, due to which serves as a temperature stabilizer, also it maintains stable metabolic rate.

• In plants, water is an essential raw material for photosynthesis.

• It helps to maintain turgidity of cells and plant organs.

• Carbohydrates, proteins, nucleic acid, enzymes and pigments may lose their function in the absence of water.

Answer 2

Answer:

At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment