The high specific heat capacity of water benefits living organisms mainly because it
Correct answer: C. keeps the temperature of cells and of water bodies relatively stable
- A. makes water an excellent solvent for ions
- B. allows cell temperature to fluctuate rapidly with the surroundings
- C. keeps the temperature of cells and of water bodies relatively stable
- D. speeds up every enzyme controlled reaction
Explanation
A large amount of heat is needed to raise the temperature of water because much of the energy first breaks hydrogen bonds between molecules. This buffers cells and coastal climates against sudden change. It is a different property from solvent power, which comes from polarity.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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