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Given below are two statements
Statement (I) : In plants, the outer membrane of the autophagosome fuses with the vacuolar membrane, or tonoplast, and the
autophagic body enters the vacuole is degraded.
Statement (II) : The monomers (amino acids, sugars, nucleosides, etc.) generated by hydrolytic breakdown of the autophagic
body are returned to the cytosol for reuse, either as an energy source or as building blocks for new cellular structures.
In light of the above statements, choose the most appropriate answer from the options given below.
EXPLANATION
Plant Cell Architecture, Organelles, Cytoskel
- Statement (I) is True: In plant macroautophagy, the outer membrane of the double-membrane autophagosome fuses with the tonoplast (vacuolar membrane), discharging the single-membrane autophagic body into the hydrolytic vacuolar lumen for enzymatic breakdown.
- Statement (II) is True: Vacuolar hydrolases digest engulfed proteins, lipids, and organelles into basic monomers (amino acids, nucleosides, sugars) that are returned to the cytosol via vacuolar transporters for cellular recycling.
- Conclusion: Both Statement (I) and Statement (II) are true.
Correct option: (1) Both Statement (|) and Statement (II) are true.
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