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J & K CETJ & K CET 2014Cell : The Unit of Life
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Solution:
Perinuclear space is present in endoplasmic reticulam. The cytoplasmic matrix is traversed by a complex network of interconnecting membrane bound cavities or vacuole, which are concentrated with endoplasmic portion of cytoplasm and therefore are termed as endoplasmic reticulam. These extensively ramification structure are contineous with outer membrane of nucleus, hence contain perinuclear space, i.e., the space between membranes of nucleus and endoplasmic reticufam is interconnected with each other. Cytoplasm of cell is enveloped internally by nuclear membrane and externally by plasma membrane. Golgi complexes are parallel arranged flattened membrane bound vesicles which lack ribosomes.