🩺 NEET🧬 Biology

Which of the following statement is not correct? [NEET 2019]

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Which of the following statement is not correct? [NEET 2019]
aLysosomes have numerous hydrolytic enzymes.
bThe hydrolytic enzymes of lysosomes are active under acidic pH.
cLysosomes are membrane bound structures.
dLysosomes are formed by the process of packaging in the endoplasmic reticulum.
✓ Correct answer: d) Lysosomes are formed by the process of packaging in the endoplasmic reticulum.
ExplanationA. Lysosomes have numerous hydrolytic enzymes — Correct They contain digestive enzymes like proteases, lipases, nucleases.B. Hydrolytic enzymes are active under acidic pH — Correct Lysosomes maintain an acidic environment (~pH 4.5–5) for enzyme activity.C. Lysosomes are membrane-bound structures — Correct They are single-membrane organelles.D. Lysosomes are formed by packaging in the endoplasmic reticulum — Incorrect Lysosomes are formed from the Golgi apparatus, not directly from the ER.Enzymes are synthesized in RER but packaging into lysosomes happens in Golgi.Correct answer: D

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