Question

The outer membrane of nucleus remains continuous with which cell organelle (a) ER (b) Golgi body (c) Lysosome (d) All of these

Short answer

The correct answer is (a) ER - the outer membrane of the nucleus remains continuous with the Endoplasmic Reticulum.

Step-by-step solution

Understand the Question

The question is asking about the structure of eukaryotic cells and trying to identify the organelle which is continuous with the outer membrane of the nucleus. Options are provided, which are different organelles present in a cell.

Analyze Given Options

Let's go through the given options: ER (Endoplasmic Reticulum), Golgi body, Lysosome, and 'All of these'. Recall that the Endoplasmic Reticulum is a network of membranous tubules within the cytoplasm that is involved in protein and lipid synthesis. The Golgi apparatus is involved in the transport of lipids around the cell, and the creation of lysosomes. Lysosomes are involved in digestion and waste removal.

Identify the Correct Option

The membrane of the cell nucleus is directly connected to one type of organelle. This organelle is the Endoplasmic Reticulum (ER). The ER and nuclear membrane are continuous to allow for communication and transfer of materials between the nucleus and cytoplasm.

Reject other options

While the Golgi apparatus and lysosomes are important organelles in a cell, the outer membrane of the nucleus is not continuous with them. So, the options 'Golgi body', 'Lysosome' and 'all of these' should be rejected and are incorrect.