Question

Arrange the following organelles starting from the center to periphery of the cell
A. Golgi apparatus
B. Nucleolus
C. Rough endoplasmic reticulum
D. Cell wall
E. Plasma membrane
Choose the correct answer from the options given below:

• A. C, A, B, D, E
• B. B, C, A, E, D
• C. B, A, C, E, D
• D. C, B, A, E, D

Hint:

In plants: Nucleus is the core, Plasma Membrane is the skin, and Cell Wall is the armor.
The ER is always "next door" to the nucleus.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The question asks for the spatial organization of cellular components in a typical plant cell, moving from the innermost part to the outermost boundary.

Step 2: Detailed Explanation:
The standard anatomical layout of a eukaryotic plant cell is as follows:

• Nucleolus (B): This is the innermost structure, located inside the nucleus. It is responsible for ribosome synthesis.

• Rough Endoplasmic Reticulum (C): The nuclear envelope is continuous with the ER. The Rough ER, studded with ribosomes, typically surrounds the nucleus.

• Golgi Apparatus (A): These are stacks of flattened sacs located in the cytoplasm, further away from the nucleus than the ER. They receive proteins from the ER and package them.

• Plasma Membrane (E): This is the selectively permeable lipid bilayer that encloses the entire cytoplasm. It is the boundary of the "living" part of the cell.

• Cell Wall (D): In plant cells, this is the outermost, rigid layer composed primarily of cellulose. It lies outside the plasma membrane.
Final Answer:
The correct sequence from center to periphery is Nucleolus \( \rightarrow \) Rough ER \( \rightarrow \) Golgi \( \rightarrow \) Plasma Membrane \( \rightarrow \) Cell Wall.
This matches B, C, A, E, D.
The correct option is (B).