Question

In a living systems, water is involved as a chemical in

• A. Photosynthesis and repiration
• B. Synthesis of polymers
• C. Hydrolysis of biochemicals
• D. All of the above

Answer 1

The correct option is D All of the above

• Photosynthesis and respiration is an enzymatic reaction where the water acts as an electron donor to PS II.
• The polymers are the macromolecules that are synthesized by the addition of monomers. Synthesis of the biomolecule is also a polymerization reaction where a water is released during bond formation. Example, formation of peptide bond.
• Hydrolysis of biochemicals also requires water for the breakdown of the various bonds between the molecules to convert them into a simpler forms. Here, water molecule dissociates to form proton and hydroxyl ions to break the molecule into two simpler parts.
• Thus, the correct answer is option D.