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Which of the following are NOT considered as the part of endomembrane system? A. Mitochondria B. Endoplasmic Reticulum C. Chloroplasts D. Golgi complex E. Peroxisomes Choose the most appropriate answer from the options given below:
The endomembrane system includes Golgi, ER, Lysosomes, and Vacuoles because their functions are coordinated. Mitochondria (A), Chloroplasts (C), and Peroxisomes (E) are explicitly NOT part of the endomembrane system! Match Option (3) A, C and E only!
The endomembrane system comprises membrane-bound organelles whose metabolic pathways and vesicular transport functions are coordinated in a continuum:
NCERT states verbatim: "While each of the membranous organelles is distinct in terms of its structure and function, many of these are considered together as an endomembrane system because their functions are coordinated. The endomembrane system include endoplasmic reticulum (ER), golgi complex, lysosomes and vacuoles. Since the functions of the mitochondria, chloroplast and peroxisomes are not coordinated with the above components, these are not considered as part of the endomembrane system."
Mitochondria (A), Chloroplasts (C), and Peroxisomes (E) are not part of the system. This corresponds uniquely to Option (3).
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Golgi complex (D) is a quintessential core component of the endomembrane system.
ER (B) and Golgi (D) ARE part of the endomembrane system; the question asks which are NOT.
Exact match with NCERT: Mitochondria (A), Chloroplasts (C), and Peroxisomes (E) are NOT part of the endomembrane system.
Includes Golgi complex (D) and omits Chloroplasts and Peroxisomes.
Students who know the endomembrane system well often reflexively look for ER and Golgi (B and D) and select Option 2, overlooking the negative prompt "NOT considered".
"Since the functions of mitochondria, chloroplast and peroxisomes are not coordinated with ER, Golgi, lysosomes and vacuoles, these are not considered as part of the endomembrane system."
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