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Question #46726
The Question
According to the fluid mosaic model, the quasi-fluid nature of lipids enables the lateral movement of proteins within the overall bilayer. If a chemical agent drastically decreases this membrane fluidity in a highly active pancreatic acinar cell, which of the following events of the endomembrane system will be most directly and immediately inhibited?
Options
- A.
The synthesis of hydrolytic enzymes on the ribosomes attached to the Rough Endoplasmic Reticulum.
- B.
The fusion of secretory vesicles with the plasma membrane, leading to an accumulation of zymogens inside the cell.
- C.
The modification of synthesized proteins into glycoproteins within the cisternae of the Golgi apparatus.
- D.
The detoxification of drugs and synthesis of lipid-like steroidal hormones in the Smooth Endoplasmic Reticulum.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
Plasma_Membrane_Fluidity|Golgi_Apparatus|Secretory_Pathway
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often memorize the structural aspects of the Fluid Mosaic Model (Singer and Nicolson) but fail to apply its functional significance to vesicular trafficking.
The trap lies in distinguishing between intra-luminal biochemical reactions (which continue temporarily) and membrane-dependent mechanical processes like exocytosis (which halt immediately upon loss of fluidity).
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Cell – The Unit of Life - Class 11 |
| Concept | Plasma Membrane Fluidity |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |