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ER divides the intracellular space into ...

ER divides the intracellular space into two distinctivee compartments, luminal……………and extra luminal……………….compartments.

A

Cytoplasm, inside ER

B

Inside ER, cytoplasm

C

Nucleus, cytoplasm

D

Inside ER, nucleus

Text Solution

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The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding the Question**: The question states that the Endoplasmic Reticulum (ER) divides the intracellular space into two distinct compartments. We need to identify these compartments. 2. **Identifying the Compartment Inside the ER**: The first compartment is referred to as the "luminal compartment." This compartment is located inside the Endoplasmic Reticulum (ER) and is known as the lumen of the ER. 3. **Identifying the Compartment Outside the ER**: The second compartment is called the "extra-luminal compartment." This compartment is located outside the ER, specifically in the cytoplasm of the cell. 4. **Functions of the Compartments**: The ER has two types: Rough Endoplasmic Reticulum (RER) and Smooth Endoplasmic Reticulum (SER). The RER is involved in protein synthesis, while the SER is involved in lipid synthesis. The products formed in these compartments are then transported to the extra-luminal compartment. 5. **Conclusion**: Therefore, the two compartments are: - Luminal compartment: Inside the ER (lumen of the ER) - Extra-luminal compartment: In the cytoplasm (outside the ER) **Final Answer**: The ER divides the intracellular space into two distinctive compartments: luminal (inside the ER) and extra-luminal (in the cytoplasm). ---
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