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Given below are two statements
Statement (I) : Compatible solutes are organic compounds that are osmotically active in the cell but do not destabilize the
membrane or interfere with enzyme function at high concentrations.
Statement (II) : Plant cells can tolerate high concentrations of compatible solutes without detrimental effects on metabolism
In light of the above statements, choose the most appropriate answer from the options given below.
EXPLANATION
Drought & Water Deficit Stress Physiology & O
- Statement (I) is True: Compatible solutes (osmolytes such as proline, glycine betaine, pinitol, and trehalose) are uncharged or zwitterionic organic compounds that lower intracellular osmotic potential without perturbing macromolecular structure or enzyme kinetics.
- Statement (II) is True: Because compatible solutes are excluded from the hydration shell of proteins, plant cells accumulate them to molar concentrations in the cytoplasm under osmotic stress without metabolic toxicity.
- Conclusion: Both Statement (I) and Statement (II) are true.
Correct option: (1) Both Statement (I) and Statement (II) are true.
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